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Finding the Fourth Proportional to 48,712.40, 73,068.60 and 47,022.80

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Solution

The fourth proportional to 48,712.40, 73,068.60 and 47,022.80 is: 70,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,712.40 : 73,068.60 = 47,022.80 : x
  2. Step 2: Convert to fraction form
    48,712.40/73,068.60 = 47,022.80/x
  3. Step 3: Cross multiply
    48,712.40x = 73,068.60 × 47,022.80
  4. Step 4: Simplify right side
    48,712.40x = 3,435,890,164.08
  5. Step 5: Solve for x
    x = 3,435,890,164.08/48,712.40
  6. Step 6: Final answer
    x = 70,534.20

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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.