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Finding the Fourth Proportional to 12,508.76, 17,248.35 and 8,030.82

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Solution

The fourth proportional to 12,508.76, 17,248.35 and 8,030.82 is: 11,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.76 : 17,248.35 = 8,030.82 : x
  2. Step 2: Convert to fraction form
    12,508.76/17,248.35 = 8,030.82/x
  3. Step 3: Cross multiply
    12,508.76x = 17,248.35 × 8,030.82
  4. Step 4: Simplify right side
    12,508.76x = 138,518,394.15
  5. Step 5: Solve for x
    x = 138,518,394.15/12,508.76
  6. Step 6: Final answer
    x = 11,073.71

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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.