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Finding the Fourth Proportional to 8,886.33, 12,253.95 and 7,631.54

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Solution

The fourth proportional to 8,886.33, 12,253.95 and 7,631.54 is: 10,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.33 : 12,253.95 = 7,631.54 : x
  2. Step 2: Convert to fraction form
    8,886.33/12,253.95 = 7,631.54/x
  3. Step 3: Cross multiply
    8,886.33x = 12,253.95 × 7,631.54
  4. Step 4: Simplify right side
    8,886.33x = 93,516,540.22
  5. Step 5: Solve for x
    x = 93,516,540.22/8,886.33
  6. Step 6: Final answer
    x = 10,523.64

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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.