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Finding the Fourth Proportional to 62,821.20, 94,231.80 and 55,822.80

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Solution

The fourth proportional to 62,821.20, 94,231.80 and 55,822.80 is: 83,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,821.20 : 94,231.80 = 55,822.80 : x
  2. Step 2: Convert to fraction form
    62,821.20/94,231.80 = 55,822.80/x
  3. Step 3: Cross multiply
    62,821.20x = 94,231.80 × 55,822.80
  4. Step 4: Simplify right side
    62,821.20x = 5,260,282,925.04
  5. Step 5: Solve for x
    x = 5,260,282,925.04/62,821.20
  6. Step 6: Final answer
    x = 83,734.20

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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.