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Finding the Fourth Proportional to 8,591.33, 12,886.81 and 4,644.47

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Solution

The fourth proportional to 8,591.33, 12,886.81 and 4,644.47 is: 6,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.33 : 12,886.81 = 4,644.47 : x
  2. Step 2: Convert to fraction form
    8,591.33/12,886.81 = 4,644.47/x
  3. Step 3: Cross multiply
    8,591.33x = 12,886.81 × 4,644.47
  4. Step 4: Simplify right side
    8,591.33x = 59,852,326.40
  5. Step 5: Solve for x
    x = 59,852,326.40/8,591.33
  6. Step 6: Final answer
    x = 6,966.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.