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Finding the Fourth Proportional to 48,754.80, 67,312.89 and 39,823.74

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Solution

The fourth proportional to 48,754.80, 67,312.89 and 39,823.74 is: 54,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,754.80 : 67,312.89 = 39,823.74 : x
  2. Step 2: Convert to fraction form
    48,754.80/67,312.89 = 39,823.74/x
  3. Step 3: Cross multiply
    48,754.80x = 67,312.89 × 39,823.74
  4. Step 4: Simplify right side
    48,754.80x = 2,680,651,030.01
  5. Step 5: Solve for x
    x = 2,680,651,030.01/48,754.80
  6. Step 6: Final answer
    x = 54,982.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.