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Finding the Fourth Proportional to 57,848.20, 86,772.30 and 18,409.30

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Solution

The fourth proportional to 57,848.20, 86,772.30 and 18,409.30 is: 27,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,848.20 : 86,772.30 = 18,409.30 : x
  2. Step 2: Convert to fraction form
    57,848.20/86,772.30 = 18,409.30/x
  3. Step 3: Cross multiply
    57,848.20x = 86,772.30 × 18,409.30
  4. Step 4: Simplify right side
    57,848.20x = 1,597,417,302.39
  5. Step 5: Solve for x
    x = 1,597,417,302.39/57,848.20
  6. Step 6: Final answer
    x = 27,613.95

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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.