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Finding the Fourth Proportional to 12,956.58, 17,882.24 and 7,293.87

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Solution

The fourth proportional to 12,956.58, 17,882.24 and 7,293.87 is: 10,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.58 : 17,882.24 = 7,293.87 : x
  2. Step 2: Convert to fraction form
    12,956.58/17,882.24 = 7,293.87/x
  3. Step 3: Cross multiply
    12,956.58x = 17,882.24 × 7,293.87
  4. Step 4: Simplify right side
    12,956.58x = 130,430,697.40
  5. Step 5: Solve for x
    x = 130,430,697.40/12,956.58
  6. Step 6: Final answer
    x = 10,066.75

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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.