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Finding the Fourth Proportional to 59,655.76, 82,238.72 and 39,478.84

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Solution

The fourth proportional to 59,655.76, 82,238.72 and 39,478.84 is: 54,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,655.76 : 82,238.72 = 39,478.84 : x
  2. Step 2: Convert to fraction form
    59,655.76/82,238.72 = 39,478.84/x
  3. Step 3: Cross multiply
    59,655.76x = 82,238.72 × 39,478.84
  4. Step 4: Simplify right side
    59,655.76x = 3,246,689,268.68
  5. Step 5: Solve for x
    x = 3,246,689,268.68/59,655.76
  6. Step 6: Final answer
    x = 54,423.73

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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.