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Finding the Fourth Proportional to 12,530.88, 17,294.19 and 7,225.74

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Solution

The fourth proportional to 12,530.88, 17,294.19 and 7,225.74 is: 9,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.88 : 17,294.19 = 7,225.74 : x
  2. Step 2: Convert to fraction form
    12,530.88/17,294.19 = 7,225.74/x
  3. Step 3: Cross multiply
    12,530.88x = 17,294.19 × 7,225.74
  4. Step 4: Simplify right side
    12,530.88x = 124,963,320.45
  5. Step 5: Solve for x
    x = 124,963,320.45/12,530.88
  6. Step 6: Final answer
    x = 9,972.43

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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.