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Finding the Fourth Proportional to 8,886.47, 12,251.09 and 6,461.46

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Solution

The fourth proportional to 8,886.47, 12,251.09 and 6,461.46 is: 8,907.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.47 : 12,251.09 = 6,461.46 : x
  2. Step 2: Convert to fraction form
    8,886.47/12,251.09 = 6,461.46/x
  3. Step 3: Cross multiply
    8,886.47x = 12,251.09 × 6,461.46
  4. Step 4: Simplify right side
    8,886.47x = 79,159,895.68
  5. Step 5: Solve for x
    x = 79,159,895.68/8,886.47
  6. Step 6: Final answer
    x = 8,907.92

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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.