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Finding the Fourth Proportional to 18,607.54, 27,909.08 and 6,124.46

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Solution

The fourth proportional to 18,607.54, 27,909.08 and 6,124.46 is: 9,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.54 : 27,909.08 = 6,124.46 : x
  2. Step 2: Convert to fraction form
    18,607.54/27,909.08 = 6,124.46/x
  3. Step 3: Cross multiply
    18,607.54x = 27,909.08 × 6,124.46
  4. Step 4: Simplify right side
    18,607.54x = 170,928,044.10
  5. Step 5: Solve for x
    x = 170,928,044.10/18,607.54
  6. Step 6: Final answer
    x = 9,185.96

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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.