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Finding the Fourth Proportional to 71,852.77, 107,779.17 and 21,933.13

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Solution

The fourth proportional to 71,852.77, 107,779.17 and 21,933.13 is: 32,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,852.77 : 107,779.17 = 21,933.13 : x
  2. Step 2: Convert to fraction form
    71,852.77/107,779.17 = 21,933.13/x
  3. Step 3: Cross multiply
    71,852.77x = 107,779.17 × 21,933.13
  4. Step 4: Simplify right side
    71,852.77x = 2,363,934,546.90
  5. Step 5: Solve for x
    x = 2,363,934,546.90/71,852.77
  6. Step 6: Final answer
    x = 32,899.70

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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.