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Finding the Fourth Proportional to 14,472.17, 19,963.28 and 8,502.74

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Solution

The fourth proportional to 14,472.17, 19,963.28 and 8,502.74 is: 11,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.17 : 19,963.28 = 8,502.74 : x
  2. Step 2: Convert to fraction form
    14,472.17/19,963.28 = 8,502.74/x
  3. Step 3: Cross multiply
    14,472.17x = 19,963.28 × 8,502.74
  4. Step 4: Simplify right side
    14,472.17x = 169,742,437.06
  5. Step 5: Solve for x
    x = 169,742,437.06/14,472.17
  6. Step 6: Final answer
    x = 11,728.89

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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.