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Finding the Fourth Proportional to 58,028.40, 87,042.60 and 54,529.20

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Solution

The fourth proportional to 58,028.40, 87,042.60 and 54,529.20 is: 81,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,028.40 : 87,042.60 = 54,529.20 : x
  2. Step 2: Convert to fraction form
    58,028.40/87,042.60 = 54,529.20/x
  3. Step 3: Cross multiply
    58,028.40x = 87,042.60 × 54,529.20
  4. Step 4: Simplify right side
    58,028.40x = 4,746,363,343.92
  5. Step 5: Solve for x
    x = 4,746,363,343.92/58,028.40
  6. Step 6: Final answer
    x = 81,793.80

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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.