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Finding the Fourth Proportional to 48,808.71, 67,390.74 and 38,584.47

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Solution

The fourth proportional to 48,808.71, 67,390.74 and 38,584.47 is: 53,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,808.71 : 67,390.74 = 38,584.47 : x
  2. Step 2: Convert to fraction form
    48,808.71/67,390.74 = 38,584.47/x
  3. Step 3: Cross multiply
    48,808.71x = 67,390.74 × 38,584.47
  4. Step 4: Simplify right side
    48,808.71x = 2,600,235,985.81
  5. Step 5: Solve for x
    x = 2,600,235,985.81/48,808.71
  6. Step 6: Final answer
    x = 53,274.02

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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.