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Finding the Fourth Proportional to 7,339,971.90, 11,009,957.85 and 7,046,039.10

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Solution

The fourth proportional to 7,339,971.90, 11,009,957.85 and 7,046,039.10 is: 10,569,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339,971.90 : 11,009,957.85 = 7,046,039.10 : x
  2. Step 2: Convert to fraction form
    7,339,971.90/11,009,957.85 = 7,046,039.10/x
  3. Step 3: Cross multiply
    7,339,971.90x = 11,009,957.85 × 7,046,039.10
  4. Step 4: Simplify right side
    7,339,971.90x = 77,576,593,500,451.92
  5. Step 5: Solve for x
    x = 77,576,593,500,451.92/7,339,971.90
  6. Step 6: Final answer
    x = 10,569,058.65

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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.