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Finding the Fourth Proportional to 86,322.60, 129,484.20 and 23,993.04

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Solution

The fourth proportional to 86,322.60, 129,484.20 and 23,993.04 is: 35,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,322.60 : 129,484.20 = 23,993.04 : x
  2. Step 2: Convert to fraction form
    86,322.60/129,484.20 = 23,993.04/x
  3. Step 3: Cross multiply
    86,322.60x = 129,484.20 × 23,993.04
  4. Step 4: Simplify right side
    86,322.60x = 3,106,719,589.97
  5. Step 5: Solve for x
    x = 3,106,719,589.97/86,322.60
  6. Step 6: Final answer
    x = 35,989.64

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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.