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Finding the Fourth Proportional to 86,695.34, 130,047.50 and 27,535.64

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Solution

The fourth proportional to 86,695.34, 130,047.50 and 27,535.64 is: 41,304.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,695.34 : 130,047.50 = 27,535.64 : x
  2. Step 2: Convert to fraction form
    86,695.34/130,047.50 = 27,535.64/x
  3. Step 3: Cross multiply
    86,695.34x = 130,047.50 × 27,535.64
  4. Step 4: Simplify right side
    86,695.34x = 3,580,941,142.90
  5. Step 5: Solve for x
    x = 3,580,941,142.90/86,695.34
  6. Step 6: Final answer
    x = 41,304.89

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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.