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Finding the Fourth Proportional to 86,655.64, 130,002.90 and 27,493.24

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Solution

The fourth proportional to 86,655.64, 130,002.90 and 27,493.24 is: 41,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,655.64 : 130,002.90 = 27,493.24 : x
  2. Step 2: Convert to fraction form
    86,655.64/130,002.90 = 27,493.24/x
  3. Step 3: Cross multiply
    86,655.64x = 130,002.90 × 27,493.24
  4. Step 4: Simplify right side
    86,655.64x = 3,574,200,930.40
  5. Step 5: Solve for x
    x = 3,574,200,930.40/86,655.64
  6. Step 6: Final answer
    x = 41,246.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.