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Finding the Fourth Proportional to 86,263.70, 129,399.60 and 27,101.30

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Solution

The fourth proportional to 86,263.70, 129,399.60 and 27,101.30 is: 40,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,263.70 : 129,399.60 = 27,101.30 : x
  2. Step 2: Convert to fraction form
    86,263.70/129,399.60 = 27,101.30/x
  3. Step 3: Cross multiply
    86,263.70x = 129,399.60 × 27,101.30
  4. Step 4: Simplify right side
    86,263.70x = 3,506,897,379.48
  5. Step 5: Solve for x
    x = 3,506,897,379.48/86,263.70
  6. Step 6: Final answer
    x = 40,653.22

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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.