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Finding the Fourth Proportional to 58,989.60, 88,484.40 and 40,327.20

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Solution

The fourth proportional to 58,989.60, 88,484.40 and 40,327.20 is: 60,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,989.60 : 88,484.40 = 40,327.20 : x
  2. Step 2: Convert to fraction form
    58,989.60/88,484.40 = 40,327.20/x
  3. Step 3: Cross multiply
    58,989.60x = 88,484.40 × 40,327.20
  4. Step 4: Simplify right side
    58,989.60x = 3,568,328,095.68
  5. Step 5: Solve for x
    x = 3,568,328,095.68/58,989.60
  6. Step 6: Final answer
    x = 60,490.80

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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.