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Finding the Fourth Proportional to 12,496.95, 17,241.84 and 7,528.95

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Solution

The fourth proportional to 12,496.95, 17,241.84 and 7,528.95 is: 10,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.95 : 17,241.84 = 7,528.95 : x
  2. Step 2: Convert to fraction form
    12,496.95/17,241.84 = 7,528.95/x
  3. Step 3: Cross multiply
    12,496.95x = 17,241.84 × 7,528.95
  4. Step 4: Simplify right side
    12,496.95x = 129,812,951.27
  5. Step 5: Solve for x
    x = 129,812,951.27/12,496.95
  6. Step 6: Final answer
    x = 10,387.57

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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.