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Finding the Fourth Proportional to 15,063.14, 20,788.98 and 8,775.92

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Solution

The fourth proportional to 15,063.14, 20,788.98 and 8,775.92 is: 12,111.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.14 : 20,788.98 = 8,775.92 : x
  2. Step 2: Convert to fraction form
    15,063.14/20,788.98 = 8,775.92/x
  3. Step 3: Cross multiply
    15,063.14x = 20,788.98 × 8,775.92
  4. Step 4: Simplify right side
    15,063.14x = 182,442,425.36
  5. Step 5: Solve for x
    x = 182,442,425.36/15,063.14
  6. Step 6: Final answer
    x = 12,111.85

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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.