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Finding the Fourth Proportional to 57,875.60, 86,813.40 and 35,616.80

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Solution

The fourth proportional to 57,875.60, 86,813.40 and 35,616.80 is: 53,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,875.60 : 86,813.40 = 35,616.80 : x
  2. Step 2: Convert to fraction form
    57,875.60/86,813.40 = 35,616.80/x
  3. Step 3: Cross multiply
    57,875.60x = 86,813.40 × 35,616.80
  4. Step 4: Simplify right side
    57,875.60x = 3,092,015,505.12
  5. Step 5: Solve for x
    x = 3,092,015,505.12/57,875.60
  6. Step 6: Final answer
    x = 53,425.20

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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.