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Finding the Fourth Proportional to 32,125.20, 48,187.80 and 13,657.20

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Solution

The fourth proportional to 32,125.20, 48,187.80 and 13,657.20 is: 20,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,125.20 : 48,187.80 = 13,657.20 : x
  2. Step 2: Convert to fraction form
    32,125.20/48,187.80 = 13,657.20/x
  3. Step 3: Cross multiply
    32,125.20x = 48,187.80 × 13,657.20
  4. Step 4: Simplify right side
    32,125.20x = 658,110,422.16
  5. Step 5: Solve for x
    x = 658,110,422.16/32,125.20
  6. Step 6: Final answer
    x = 20,485.80

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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.