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Finding the Fourth Proportional to 48,425.65, 72,214.74 and 47,982.78

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Solution

The fourth proportional to 48,425.65, 72,214.74 and 47,982.78 is: 71,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,425.65 : 72,214.74 = 47,982.78 : x
  2. Step 2: Convert to fraction form
    48,425.65/72,214.74 = 47,982.78/x
  3. Step 3: Cross multiply
    48,425.65x = 72,214.74 × 47,982.78
  4. Step 4: Simplify right side
    48,425.65x = 3,465,063,982.18
  5. Step 5: Solve for x
    x = 3,465,063,982.18/48,425.65
  6. Step 6: Final answer
    x = 71,554.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.