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Finding the Fourth Proportional to 65,539.80, 98,309.70 and 18,154.80

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Solution

The fourth proportional to 65,539.80, 98,309.70 and 18,154.80 is: 27,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,539.80 : 98,309.70 = 18,154.80 : x
  2. Step 2: Convert to fraction form
    65,539.80/98,309.70 = 18,154.80/x
  3. Step 3: Cross multiply
    65,539.80x = 98,309.70 × 18,154.80
  4. Step 4: Simplify right side
    65,539.80x = 1,784,792,941.56
  5. Step 5: Solve for x
    x = 1,784,792,941.56/65,539.80
  6. Step 6: Final answer
    x = 27,232.20

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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.