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Finding the Fourth Proportional to 9,669.70, 14,404.68 and 9,439.30

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Solution

The fourth proportional to 9,669.70, 14,404.68 and 9,439.30 is: 14,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669.70 : 14,404.68 = 9,439.30 : x
  2. Step 2: Convert to fraction form
    9,669.70/14,404.68 = 9,439.30/x
  3. Step 3: Cross multiply
    9,669.70x = 14,404.68 × 9,439.30
  4. Step 4: Simplify right side
    9,669.70x = 135,970,095.92
  5. Step 5: Solve for x
    x = 135,970,095.92/9,669.70
  6. Step 6: Final answer
    x = 14,061.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.