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Finding the Fourth Proportional to 86,775.98, 130,158.50 and 27,654.08

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Solution

The fourth proportional to 86,775.98, 130,158.50 and 27,654.08 is: 41,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.98 : 130,158.50 = 27,654.08 : x
  2. Step 2: Convert to fraction form
    86,775.98/130,158.50 = 27,654.08/x
  3. Step 3: Cross multiply
    86,775.98x = 130,158.50 × 27,654.08
  4. Step 4: Simplify right side
    86,775.98x = 3,599,412,782.62
  5. Step 5: Solve for x
    x = 3,599,412,782.62/86,775.98
  6. Step 6: Final answer
    x = 41,479.37

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1.5x scale

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.