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Finding the Fourth Proportional to 9,053.35, 12,493.97 and 5,278.95

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Solution

The fourth proportional to 9,053.35, 12,493.97 and 5,278.95 is: 7,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,053.35 : 12,493.97 = 5,278.95 : x
  2. Step 2: Convert to fraction form
    9,053.35/12,493.97 = 5,278.95/x
  3. Step 3: Cross multiply
    9,053.35x = 12,493.97 × 5,278.95
  4. Step 4: Simplify right side
    9,053.35x = 65,955,042.93
  5. Step 5: Solve for x
    x = 65,955,042.93/9,053.35
  6. Step 6: Final answer
    x = 7,285.15

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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.