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Finding the Fourth Proportional to 12,463.61, 17,195.52 and 7,085.50

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Solution

The fourth proportional to 12,463.61, 17,195.52 and 7,085.50 is: 9,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.61 : 17,195.52 = 7,085.50 : x
  2. Step 2: Convert to fraction form
    12,463.61/17,195.52 = 7,085.50/x
  3. Step 3: Cross multiply
    12,463.61x = 17,195.52 × 7,085.50
  4. Step 4: Simplify right side
    12,463.61x = 121,838,856.96
  5. Step 5: Solve for x
    x = 121,838,856.96/12,463.61
  6. Step 6: Final answer
    x = 9,775.57

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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.