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Finding the Fourth Proportional to 71,684.48, 107,548.59 and 36,648.74

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Solution

The fourth proportional to 71,684.48, 107,548.59 and 36,648.74 is: 54,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,684.48 : 107,548.59 = 36,648.74 : x
  2. Step 2: Convert to fraction form
    71,684.48/107,548.59 = 36,648.74/x
  3. Step 3: Cross multiply
    71,684.48x = 107,548.59 × 36,648.74
  4. Step 4: Simplify right side
    71,684.48x = 3,941,520,718.58
  5. Step 5: Solve for x
    x = 3,941,520,718.58/71,684.48
  6. Step 6: Final answer
    x = 54,984.29

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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.