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Finding the Fourth Proportional to 73,942.80, 110,827.80 and 38,864.40

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Solution

The fourth proportional to 73,942.80, 110,827.80 and 38,864.40 is: 58,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,942.80 : 110,827.80 = 38,864.40 : x
  2. Step 2: Convert to fraction form
    73,942.80/110,827.80 = 38,864.40/x
  3. Step 3: Cross multiply
    73,942.80x = 110,827.80 × 38,864.40
  4. Step 4: Simplify right side
    73,942.80x = 4,307,255,950.32
  5. Step 5: Solve for x
    x = 4,307,255,950.32/73,942.80
  6. Step 6: Final answer
    x = 58,251.19

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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.