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Finding the Fourth Proportional to 65,811.80, 98,717.70 and 60,368.60

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Solution

The fourth proportional to 65,811.80, 98,717.70 and 60,368.60 is: 90,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.80 : 98,717.70 = 60,368.60 : x
  2. Step 2: Convert to fraction form
    65,811.80/98,717.70 = 60,368.60/x
  3. Step 3: Cross multiply
    65,811.80x = 98,717.70 × 60,368.60
  4. Step 4: Simplify right side
    65,811.80x = 5,959,449,344.22
  5. Step 5: Solve for x
    x = 5,959,449,344.22/65,811.80
  6. Step 6: Final answer
    x = 90,552.90

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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.