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Finding the Fourth Proportional to 86,065.00, 129,115.72 and 26,905.13

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Solution

The fourth proportional to 86,065.00, 129,115.72 and 26,905.13 is: 40,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,065.00 : 129,115.72 = 26,905.13 : x
  2. Step 2: Convert to fraction form
    86,065.00/129,115.72 = 26,905.13/x
  3. Step 3: Cross multiply
    86,065.00x = 129,115.72 × 26,905.13
  4. Step 4: Simplify right side
    86,065.00x = 3,473,875,103.88
  5. Step 5: Solve for x
    x = 3,473,875,103.88/86,065.00
  6. Step 6: Final answer
    x = 40,363.39

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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.