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Finding the Fourth Proportional to 4,888.32, 6,743.40 and 2,897.92

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Solution

The fourth proportional to 4,888.32, 6,743.40 and 2,897.92 is: 3,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.32 : 6,743.40 = 2,897.92 : x
  2. Step 2: Convert to fraction form
    4,888.32/6,743.40 = 2,897.92/x
  3. Step 3: Cross multiply
    4,888.32x = 6,743.40 × 2,897.92
  4. Step 4: Simplify right side
    4,888.32x = 19,541,833.73
  5. Step 5: Solve for x
    x = 19,541,833.73/4,888.32
  6. Step 6: Final answer
    x = 3,997.66

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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.