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Finding the Fourth Proportional to 17,616.64, 24,332.24 and 12,828.92

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Solution

The fourth proportional to 17,616.64, 24,332.24 and 12,828.92 is: 17,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616.64 : 24,332.24 = 12,828.92 : x
  2. Step 2: Convert to fraction form
    17,616.64/24,332.24 = 12,828.92/x
  3. Step 3: Cross multiply
    17,616.64x = 24,332.24 × 12,828.92
  4. Step 4: Simplify right side
    17,616.64x = 312,156,360.38
  5. Step 5: Solve for x
    x = 312,156,360.38/17,616.64
  6. Step 6: Final answer
    x = 17,719.40

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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.