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Finding the Fourth Proportional to 12,366.84, 17,067.08 and 6,987.41

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Solution

The fourth proportional to 12,366.84, 17,067.08 and 6,987.41 is: 9,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.84 : 17,067.08 = 6,987.41 : x
  2. Step 2: Convert to fraction form
    12,366.84/17,067.08 = 6,987.41/x
  3. Step 3: Cross multiply
    12,366.84x = 17,067.08 × 6,987.41
  4. Step 4: Simplify right side
    12,366.84x = 119,254,685.46
  5. Step 5: Solve for x
    x = 119,254,685.46/12,366.84
  6. Step 6: Final answer
    x = 9,643.10

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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.