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Finding the Fourth Proportional to 12,502.69, 17,253.71 and 7,199.21

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Solution

The fourth proportional to 12,502.69, 17,253.71 and 7,199.21 is: 9,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.69 : 17,253.71 = 7,199.21 : x
  2. Step 2: Convert to fraction form
    12,502.69/17,253.71 = 7,199.21/x
  3. Step 3: Cross multiply
    12,502.69x = 17,253.71 × 7,199.21
  4. Step 4: Simplify right side
    12,502.69x = 124,213,115.70
  5. Step 5: Solve for x
    x = 124,213,115.70/12,502.69
  6. Step 6: Final answer
    x = 9,934.91

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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.