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Finding the Fourth Proportional to 12,833.70, 19,250.55 and 8,897.10

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Solution

The fourth proportional to 12,833.70, 19,250.55 and 8,897.10 is: 13,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,833.70 : 19,250.55 = 8,897.10 : x
  2. Step 2: Convert to fraction form
    12,833.70/19,250.55 = 8,897.10/x
  3. Step 3: Cross multiply
    12,833.70x = 19,250.55 × 8,897.10
  4. Step 4: Simplify right side
    12,833.70x = 171,274,068.41
  5. Step 5: Solve for x
    x = 171,274,068.41/12,833.70
  6. Step 6: Final answer
    x = 13,345.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.