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Finding the Fourth Proportional to 9,907,712.70, 14,861,569.05 and 7,206,330.30

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Solution

The fourth proportional to 9,907,712.70, 14,861,569.05 and 7,206,330.30 is: 10,809,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907,712.70 : 14,861,569.05 = 7,206,330.30 : x
  2. Step 2: Convert to fraction form
    9,907,712.70/14,861,569.05 = 7,206,330.30/x
  3. Step 3: Cross multiply
    9,907,712.70x = 14,861,569.05 × 7,206,330.30
  4. Step 4: Simplify right side
    9,907,712.70x = 107,097,375,350,557.22
  5. Step 5: Solve for x
    x = 107,097,375,350,557.22/9,907,712.70
  6. Step 6: Final answer
    x = 10,809,495.45

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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.