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Finding the Fourth Proportional to 8,488.86, 11,726.44 and 8,073.68

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Solution

The fourth proportional to 8,488.86, 11,726.44 and 8,073.68 is: 11,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.86 : 11,726.44 = 8,073.68 : x
  2. Step 2: Convert to fraction form
    8,488.86/11,726.44 = 8,073.68/x
  3. Step 3: Cross multiply
    8,488.86x = 11,726.44 × 8,073.68
  4. Step 4: Simplify right side
    8,488.86x = 94,675,465.47
  5. Step 5: Solve for x
    x = 94,675,465.47/8,488.86
  6. Step 6: Final answer
    x = 11,152.91

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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.