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Finding the Fourth Proportional to 9,945,644.70, 14,953,896.45 and 8,386,751.10

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Solution

The fourth proportional to 9,945,644.70, 14,953,896.45 and 8,386,751.10 is: 12,610,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945,644.70 : 14,953,896.45 = 8,386,751.10 : x
  2. Step 2: Convert to fraction form
    9,945,644.70/14,953,896.45 = 8,386,751.10/x
  3. Step 3: Cross multiply
    9,945,644.70x = 14,953,896.45 × 8,386,751.10
  4. Step 4: Simplify right side
    9,945,644.70x = 125,414,607,501,323.58
  5. Step 5: Solve for x
    x = 125,414,607,501,323.58/9,945,644.70
  6. Step 6: Final answer
    x = 12,610,002.80

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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.