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Finding the Fourth Proportional to 86,026.44, 129,019.10 and 36,107.44

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Solution

The fourth proportional to 86,026.44, 129,019.10 and 36,107.44 is: 54,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,026.44 : 129,019.10 = 36,107.44 : x
  2. Step 2: Convert to fraction form
    86,026.44/129,019.10 = 36,107.44/x
  3. Step 3: Cross multiply
    86,026.44x = 129,019.10 × 36,107.44
  4. Step 4: Simplify right side
    86,026.44x = 4,658,549,412.10
  5. Step 5: Solve for x
    x = 4,658,549,412.10/86,026.44
  6. Step 6: Final answer
    x = 54,152.53

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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.