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Finding the Fourth Proportional to 10,959.32, 15,104.70 and 7,934.36

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Solution

The fourth proportional to 10,959.32, 15,104.70 and 7,934.36 is: 10,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.32 : 15,104.70 = 7,934.36 : x
  2. Step 2: Convert to fraction form
    10,959.32/15,104.70 = 7,934.36/x
  3. Step 3: Cross multiply
    10,959.32x = 15,104.70 × 7,934.36
  4. Step 4: Simplify right side
    10,959.32x = 119,846,127.49
  5. Step 5: Solve for x
    x = 119,846,127.49/10,959.32
  6. Step 6: Final answer
    x = 10,935.54

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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.