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Finding the Fourth Proportional to 8,287.64, 11,436.71 and 4,510.71

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Solution

The fourth proportional to 8,287.64, 11,436.71 and 4,510.71 is: 6,224.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.64 : 11,436.71 = 4,510.71 : x
  2. Step 2: Convert to fraction form
    8,287.64/11,436.71 = 4,510.71/x
  3. Step 3: Cross multiply
    8,287.64x = 11,436.71 × 4,510.71
  4. Step 4: Simplify right side
    8,287.64x = 51,587,659.61
  5. Step 5: Solve for x
    x = 51,587,659.61/8,287.64
  6. Step 6: Final answer
    x = 6,224.65

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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.