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Finding the Fourth Proportional to 8,952.68, 12,352.71 and 5,415.82

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Solution

The fourth proportional to 8,952.68, 12,352.71 and 5,415.82 is: 7,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.68 : 12,352.71 = 5,415.82 : x
  2. Step 2: Convert to fraction form
    8,952.68/12,352.71 = 5,415.82/x
  3. Step 3: Cross multiply
    8,952.68x = 12,352.71 × 5,415.82
  4. Step 4: Simplify right side
    8,952.68x = 66,900,053.87
  5. Step 5: Solve for x
    x = 66,900,053.87/8,952.68
  6. Step 6: Final answer
    x = 7,472.63

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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.