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Finding the Fourth Proportional to 10,927.72, 15,080.22 and 5,959.72

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Solution

The fourth proportional to 10,927.72, 15,080.22 and 5,959.72 is: 8,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.72 : 15,080.22 = 5,959.72 : x
  2. Step 2: Convert to fraction form
    10,927.72/15,080.22 = 5,959.72/x
  3. Step 3: Cross multiply
    10,927.72x = 15,080.22 × 5,959.72
  4. Step 4: Simplify right side
    10,927.72x = 89,873,888.74
  5. Step 5: Solve for x
    x = 89,873,888.74/10,927.72
  6. Step 6: Final answer
    x = 8,224.40

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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.