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Finding the Fourth Proportional to 7,962.66, 10,987.65 and 4,425.48

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Solution

The fourth proportional to 7,962.66, 10,987.65 and 4,425.48 is: 6,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.66 : 10,987.65 = 4,425.48 : x
  2. Step 2: Convert to fraction form
    7,962.66/10,987.65 = 4,425.48/x
  3. Step 3: Cross multiply
    7,962.66x = 10,987.65 × 4,425.48
  4. Step 4: Simplify right side
    7,962.66x = 48,625,625.32
  5. Step 5: Solve for x
    x = 48,625,625.32/7,962.66
  6. Step 6: Final answer
    x = 6,106.71

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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.