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Finding the Fourth Proportional to 12,526.76, 17,286.92 and 6,937.76

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Solution

The fourth proportional to 12,526.76, 17,286.92 and 6,937.76 is: 9,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.76 : 17,286.92 = 6,937.76 : x
  2. Step 2: Convert to fraction form
    12,526.76/17,286.92 = 6,937.76/x
  3. Step 3: Cross multiply
    12,526.76x = 17,286.92 × 6,937.76
  4. Step 4: Simplify right side
    12,526.76x = 119,932,502.10
  5. Step 5: Solve for x
    x = 119,932,502.10/12,526.76
  6. Step 6: Final answer
    x = 9,574.10

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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.