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Finding the Fourth Proportional to 58,983.60, 88,475.40 and 40,321.20

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Solution

The fourth proportional to 58,983.60, 88,475.40 and 40,321.20 is: 60,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,983.60 : 88,475.40 = 40,321.20 : x
  2. Step 2: Convert to fraction form
    58,983.60/88,475.40 = 40,321.20/x
  3. Step 3: Cross multiply
    58,983.60x = 88,475.40 × 40,321.20
  4. Step 4: Simplify right side
    58,983.60x = 3,567,434,298.48
  5. Step 5: Solve for x
    x = 3,567,434,298.48/58,983.60
  6. Step 6: Final answer
    x = 60,481.80

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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.