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Finding the Fourth Proportional to 14,472.04, 19,963.92 and 9,157.72

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Solution

The fourth proportional to 14,472.04, 19,963.92 and 9,157.72 is: 12,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.04 : 19,963.92 = 9,157.72 : x
  2. Step 2: Convert to fraction form
    14,472.04/19,963.92 = 9,157.72/x
  3. Step 3: Cross multiply
    14,472.04x = 19,963.92 × 9,157.72
  4. Step 4: Simplify right side
    14,472.04x = 182,823,989.46
  5. Step 5: Solve for x
    x = 182,823,989.46/14,472.04
  6. Step 6: Final answer
    x = 12,632.91

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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.