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Finding the Fourth Proportional to 2,897.38, 3,998.92 and 1,953.16

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Solution

The fourth proportional to 2,897.38, 3,998.92 and 1,953.16 is: 2,695.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.38 : 3,998.92 = 1,953.16 : x
  2. Step 2: Convert to fraction form
    2,897.38/3,998.92 = 1,953.16/x
  3. Step 3: Cross multiply
    2,897.38x = 3,998.92 × 1,953.16
  4. Step 4: Simplify right side
    2,897.38x = 7,810,530.59
  5. Step 5: Solve for x
    x = 7,810,530.59/2,897.38
  6. Step 6: Final answer
    x = 2,695.72

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,898.38, 4,000.30 and 1,954.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.