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Finding the Fourth Proportional to 10,891.64, 15,030.20 and 6,046.38

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Solution

The fourth proportional to 10,891.64, 15,030.20 and 6,046.38 is: 8,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.64 : 15,030.20 = 6,046.38 : x
  2. Step 2: Convert to fraction form
    10,891.64/15,030.20 = 6,046.38/x
  3. Step 3: Cross multiply
    10,891.64x = 15,030.20 × 6,046.38
  4. Step 4: Simplify right side
    10,891.64x = 90,878,270.44
  5. Step 5: Solve for x
    x = 90,878,270.44/10,891.64
  6. Step 6: Final answer
    x = 8,343.86

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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.