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Finding the Fourth Proportional to 56,975.60, 85,463.40 and 25,385.60

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Solution

The fourth proportional to 56,975.60, 85,463.40 and 25,385.60 is: 38,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,975.60 : 85,463.40 = 25,385.60 : x
  2. Step 2: Convert to fraction form
    56,975.60/85,463.40 = 25,385.60/x
  3. Step 3: Cross multiply
    56,975.60x = 85,463.40 × 25,385.60
  4. Step 4: Simplify right side
    56,975.60x = 2,169,539,687.04
  5. Step 5: Solve for x
    x = 2,169,539,687.04/56,975.60
  6. Step 6: Final answer
    x = 38,078.40

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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.