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Finding the Fourth Proportional to 22,472,990.10, 33,709,485.15 and 12,917,841.30

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Solution

The fourth proportional to 22,472,990.10, 33,709,485.15 and 12,917,841.30 is: 19,376,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472,990.10 : 33,709,485.15 = 12,917,841.30 : x
  2. Step 2: Convert to fraction form
    22,472,990.10/33,709,485.15 = 12,917,841.30/x
  3. Step 3: Cross multiply
    22,472,990.10x = 33,709,485.15 × 12,917,841.30
  4. Step 4: Simplify right side
    22,472,990.10x = 435,453,779,472,406.69
  5. Step 5: Solve for x
    x = 435,453,779,472,406.69/22,472,990.10
  6. Step 6: Final answer
    x = 19,376,761.95

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Double scale
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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.