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Finding the Fourth Proportional to 60,539.40, 90,765.90 and 34,252.20

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Solution

The fourth proportional to 60,539.40, 90,765.90 and 34,252.20 is: 51,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,539.40 : 90,765.90 = 34,252.20 : x
  2. Step 2: Convert to fraction form
    60,539.40/90,765.90 = 34,252.20/x
  3. Step 3: Cross multiply
    60,539.40x = 90,765.90 × 34,252.20
  4. Step 4: Simplify right side
    60,539.40x = 3,108,931,759.98
  5. Step 5: Solve for x
    x = 3,108,931,759.98/60,539.40
  6. Step 6: Final answer
    x = 51,353.86

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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.