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Finding the Fourth Proportional to 86,527.68, 129,792 and 36,595.20

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Solution

The fourth proportional to 86,527.68, 129,792 and 36,595.20 is: 54,893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,527.68 : 129,792 = 36,595.20 : x
  2. Step 2: Convert to fraction form
    86,527.68/129,792 = 36,595.20/x
  3. Step 3: Cross multiply
    86,527.68x = 129,792 × 36,595.20
  4. Step 4: Simplify right side
    86,527.68x = 4,749,764,198.40
  5. Step 5: Solve for x
    x = 4,749,764,198.40/86,527.68
  6. Step 6: Final answer
    x = 54,893.00

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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.