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Finding the Fourth Proportional to 12,959.94, 17,883.35 and 7,294.58

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Solution

The fourth proportional to 12,959.94, 17,883.35 and 7,294.58 is: 10,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.94 : 17,883.35 = 7,294.58 : x
  2. Step 2: Convert to fraction form
    12,959.94/17,883.35 = 7,294.58/x
  3. Step 3: Cross multiply
    12,959.94x = 17,883.35 × 7,294.58
  4. Step 4: Simplify right side
    12,959.94x = 130,451,535.48
  5. Step 5: Solve for x
    x = 130,451,535.48/12,959.94
  6. Step 6: Final answer
    x = 10,065.75

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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.