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Finding the Fourth Proportional to 62,191.88, 93,302.39 and 20,638.88

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Solution

The fourth proportional to 62,191.88, 93,302.39 and 20,638.88 is: 30,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,191.88 : 93,302.39 = 20,638.88 : x
  2. Step 2: Convert to fraction form
    62,191.88/93,302.39 = 20,638.88/x
  3. Step 3: Cross multiply
    62,191.88x = 93,302.39 × 20,638.88
  4. Step 4: Simplify right side
    62,191.88x = 1,925,656,416.01
  5. Step 5: Solve for x
    x = 1,925,656,416.01/62,191.88
  6. Step 6: Final answer
    x = 30,963.15

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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.