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Finding the Fourth Proportional to 34,780,402.80, 52,154,857.80 and 13,207,834.80

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Solution

The fourth proportional to 34,780,402.80, 52,154,857.80 and 13,207,834.80 is: 19,805,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,780,402.80 : 52,154,857.80 = 13,207,834.80 : x
  2. Step 2: Convert to fraction form
    34,780,402.80/52,154,857.80 = 13,207,834.80/x
  3. Step 3: Cross multiply
    34,780,402.80x = 52,154,857.80 × 13,207,834.80
  4. Step 4: Simplify right side
    34,780,402.80x = 688,852,745,839,891.50
  5. Step 5: Solve for x
    x = 688,852,745,839,891.50/34,780,402.80
  6. Step 6: Final answer
    x = 19,805,772.52

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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.