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Finding the Fourth Proportional to 11,168.25, 15,412.64 and 6,132.68

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Solution

The fourth proportional to 11,168.25, 15,412.64 and 6,132.68 is: 8,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.25 : 15,412.64 = 6,132.68 : x
  2. Step 2: Convert to fraction form
    11,168.25/15,412.64 = 6,132.68/x
  3. Step 3: Cross multiply
    11,168.25x = 15,412.64 × 6,132.68
  4. Step 4: Simplify right side
    11,168.25x = 94,520,681.35
  5. Step 5: Solve for x
    x = 94,520,681.35/11,168.25
  6. Step 6: Final answer
    x = 8,463.34

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Half scale
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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.