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Finding the Fourth Proportional to 21,270.60, 32,057.19 and 21,270.60

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Solution

The fourth proportional to 21,270.60, 32,057.19 and 21,270.60 is: 32,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.60 : 32,057.19 = 21,270.60 : x
  2. Step 2: Convert to fraction form
    21,270.60/32,057.19 = 21,270.60/x
  3. Step 3: Cross multiply
    21,270.60x = 32,057.19 × 21,270.60
  4. Step 4: Simplify right side
    21,270.60x = 681,875,665.61
  5. Step 5: Solve for x
    x = 681,875,665.61/21,270.60
  6. Step 6: Final answer
    x = 32,057.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.