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Finding the Fourth Proportional to 60,401.88, 90,615.96 and 18,281.16

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Solution

The fourth proportional to 60,401.88, 90,615.96 and 18,281.16 is: 27,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,401.88 : 90,615.96 = 18,281.16 : x
  2. Step 2: Convert to fraction form
    60,401.88/90,615.96 = 18,281.16/x
  3. Step 3: Cross multiply
    60,401.88x = 90,615.96 × 18,281.16
  4. Step 4: Simplify right side
    60,401.88x = 1,656,564,863.31
  5. Step 5: Solve for x
    x = 1,656,564,863.31/60,401.88
  6. Step 6: Final answer
    x = 27,425.72

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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.