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Finding the Fourth Proportional to 12,041.88, 16,612.25 and 7,794.31

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Solution

The fourth proportional to 12,041.88, 16,612.25 and 7,794.31 is: 10,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.88 : 16,612.25 = 7,794.31 : x
  2. Step 2: Convert to fraction form
    12,041.88/16,612.25 = 7,794.31/x
  3. Step 3: Cross multiply
    12,041.88x = 16,612.25 × 7,794.31
  4. Step 4: Simplify right side
    12,041.88x = 129,480,943.24
  5. Step 5: Solve for x
    x = 129,480,943.24/12,041.88
  6. Step 6: Final answer
    x = 10,752.55

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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.