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Finding the Fourth Proportional to 12,341.40, 17,031.10 and 6,752.40

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Solution

The fourth proportional to 12,341.40, 17,031.10 and 6,752.40 is: 9,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.40 : 17,031.10 = 6,752.40 : x
  2. Step 2: Convert to fraction form
    12,341.40/17,031.10 = 6,752.40/x
  3. Step 3: Cross multiply
    12,341.40x = 17,031.10 × 6,752.40
  4. Step 4: Simplify right side
    12,341.40x = 115,000,799.64
  5. Step 5: Solve for x
    x = 115,000,799.64/12,341.40
  6. Step 6: Final answer
    x = 9,318.29

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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.