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Finding the Fourth Proportional to 60,397.90, 90,598.73 and 28,811.38

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Solution

The fourth proportional to 60,397.90, 90,598.73 and 28,811.38 is: 43,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,397.90 : 90,598.73 = 28,811.38 : x
  2. Step 2: Convert to fraction form
    60,397.90/90,598.73 = 28,811.38/x
  3. Step 3: Cross multiply
    60,397.90x = 90,598.73 × 28,811.38
  4. Step 4: Simplify right side
    60,397.90x = 2,610,274,437.55
  5. Step 5: Solve for x
    x = 2,610,274,437.55/60,397.90
  6. Step 6: Final answer
    x = 43,217.97

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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.