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Finding the Fourth Proportional to 16,176.52, 22,330.52 and 11,139.13

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Solution

The fourth proportional to 16,176.52, 22,330.52 and 11,139.13 is: 15,376.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,176.52 : 22,330.52 = 11,139.13 : x
  2. Step 2: Convert to fraction form
    16,176.52/22,330.52 = 11,139.13/x
  3. Step 3: Cross multiply
    16,176.52x = 22,330.52 × 11,139.13
  4. Step 4: Simplify right side
    16,176.52x = 248,742,565.25
  5. Step 5: Solve for x
    x = 248,742,565.25/16,176.52
  6. Step 6: Final answer
    x = 15,376.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.