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Finding the Fourth Proportional to 9,891.76, 14,823.02 and 5,503.18

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Solution

The fourth proportional to 9,891.76, 14,823.02 and 5,503.18 is: 8,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.76 : 14,823.02 = 5,503.18 : x
  2. Step 2: Convert to fraction form
    9,891.76/14,823.02 = 5,503.18/x
  3. Step 3: Cross multiply
    9,891.76x = 14,823.02 × 5,503.18
  4. Step 4: Simplify right side
    9,891.76x = 81,573,747.20
  5. Step 5: Solve for x
    x = 81,573,747.20/9,891.76
  6. Step 6: Final answer
    x = 8,246.64

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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.