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Finding the Fourth Proportional to 86,221.77, 129,332.70 and 23,892.27

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Solution

The fourth proportional to 86,221.77, 129,332.70 and 23,892.27 is: 35,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221.77 : 129,332.70 = 23,892.27 : x
  2. Step 2: Convert to fraction form
    86,221.77/129,332.70 = 23,892.27/x
  3. Step 3: Cross multiply
    86,221.77x = 129,332.70 × 23,892.27
  4. Step 4: Simplify right side
    86,221.77x = 3,090,051,788.23
  5. Step 5: Solve for x
    x = 3,090,051,788.23/86,221.77
  6. Step 6: Final answer
    x = 35,838.42

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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.