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Finding the Fourth Proportional to 18,386.66, 27,560.25 and 7,277.92

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Solution

The fourth proportional to 18,386.66, 27,560.25 and 7,277.92 is: 10,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.66 : 27,560.25 = 7,277.92 : x
  2. Step 2: Convert to fraction form
    18,386.66/27,560.25 = 7,277.92/x
  3. Step 3: Cross multiply
    18,386.66x = 27,560.25 × 7,277.92
  4. Step 4: Simplify right side
    18,386.66x = 200,581,225.78
  5. Step 5: Solve for x
    x = 200,581,225.78/18,386.66
  6. Step 6: Final answer
    x = 10,909.06

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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.