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Finding the Fourth Proportional to 57,384.60, 86,073.56 and 25,786.50

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Solution

The fourth proportional to 57,384.60, 86,073.56 and 25,786.50 is: 38,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,384.60 : 86,073.56 = 25,786.50 : x
  2. Step 2: Convert to fraction form
    57,384.60/86,073.56 = 25,786.50/x
  3. Step 3: Cross multiply
    57,384.60x = 86,073.56 × 25,786.50
  4. Step 4: Simplify right side
    57,384.60x = 2,219,535,854.94
  5. Step 5: Solve for x
    x = 2,219,535,854.94/57,384.60
  6. Step 6: Final answer
    x = 38,678.25

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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.