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Finding the Fourth Proportional to 10,916,264.70, 16,372,100.70 and 5,519,842.20

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Solution

The fourth proportional to 10,916,264.70, 16,372,100.70 and 5,519,842.20 is: 8,278,602.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916,264.70 : 16,372,100.70 = 5,519,842.20 : x
  2. Step 2: Convert to fraction form
    10,916,264.70/16,372,100.70 = 5,519,842.20/x
  3. Step 3: Cross multiply
    10,916,264.70x = 16,372,100.70 × 5,519,842.20
  4. Step 4: Simplify right side
    10,916,264.70x = 90,371,412,346,509.53
  5. Step 5: Solve for x
    x = 90,371,412,346,509.53/10,916,264.70
  6. Step 6: Final answer
    x = 8,278,602.14

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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.