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Finding the Fourth Proportional to 12,703.99, 17,531.17 and 7,326.30

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Solution

The fourth proportional to 12,703.99, 17,531.17 and 7,326.30 is: 10,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.99 : 17,531.17 = 7,326.30 : x
  2. Step 2: Convert to fraction form
    12,703.99/17,531.17 = 7,326.30/x
  3. Step 3: Cross multiply
    12,703.99x = 17,531.17 × 7,326.30
  4. Step 4: Simplify right side
    12,703.99x = 128,438,592.46
  5. Step 5: Solve for x
    x = 128,438,592.46/12,703.99
  6. Step 6: Final answer
    x = 10,110.10

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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.