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Finding the Fourth Proportional to 19,614.46, 29,412.44 and 7,125.68

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Solution

The fourth proportional to 19,614.46, 29,412.44 and 7,125.68 is: 10,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.46 : 29,412.44 = 7,125.68 : x
  2. Step 2: Convert to fraction form
    19,614.46/29,412.44 = 7,125.68/x
  3. Step 3: Cross multiply
    19,614.46x = 29,412.44 × 7,125.68
  4. Step 4: Simplify right side
    19,614.46x = 209,583,635.46
  5. Step 5: Solve for x
    x = 209,583,635.46/19,614.46
  6. Step 6: Final answer
    x = 10,685.16

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1.5x scale

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.