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Finding the Fourth Proportional to 62,111.80, 93,167.70 and 20,558.80

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Solution

The fourth proportional to 62,111.80, 93,167.70 and 20,558.80 is: 30,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,111.80 : 93,167.70 = 20,558.80 : x
  2. Step 2: Convert to fraction form
    62,111.80/93,167.70 = 20,558.80/x
  3. Step 3: Cross multiply
    62,111.80x = 93,167.70 × 20,558.80
  4. Step 4: Simplify right side
    62,111.80x = 1,915,416,110.76
  5. Step 5: Solve for x
    x = 1,915,416,110.76/62,111.80
  6. Step 6: Final answer
    x = 30,838.20

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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.