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Finding the Fourth Proportional to 91,598.01, 137,416.60 and 28,416.76

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Solution

The fourth proportional to 91,598.01, 137,416.60 and 28,416.76 is: 42,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,598.01 : 137,416.60 = 28,416.76 : x
  2. Step 2: Convert to fraction form
    91,598.01/137,416.60 = 28,416.76/x
  3. Step 3: Cross multiply
    91,598.01x = 137,416.60 × 28,416.76
  4. Step 4: Simplify right side
    91,598.01x = 3,904,934,234.20
  5. Step 5: Solve for x
    x = 3,904,934,234.20/91,598.01
  6. Step 6: Final answer
    x = 42,631.21

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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.