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Finding the Fourth Proportional to 67,614.10, 101,421.15 and 18,366.10

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Solution

The fourth proportional to 67,614.10, 101,421.15 and 18,366.10 is: 27,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,614.10 : 101,421.15 = 18,366.10 : x
  2. Step 2: Convert to fraction form
    67,614.10/101,421.15 = 18,366.10/x
  3. Step 3: Cross multiply
    67,614.10x = 101,421.15 × 18,366.10
  4. Step 4: Simplify right side
    67,614.10x = 1,862,710,983.02
  5. Step 5: Solve for x
    x = 1,862,710,983.02/67,614.10
  6. Step 6: Final answer
    x = 27,549.15

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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.