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Finding the Fourth Proportional to 65,991.40, 98,987.10 and 58,733.80

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Solution

The fourth proportional to 65,991.40, 98,987.10 and 58,733.80 is: 88,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,991.40 : 98,987.10 = 58,733.80 : x
  2. Step 2: Convert to fraction form
    65,991.40/98,987.10 = 58,733.80/x
  3. Step 3: Cross multiply
    65,991.40x = 98,987.10 × 58,733.80
  4. Step 4: Simplify right side
    65,991.40x = 5,813,888,533.98
  5. Step 5: Solve for x
    x = 5,813,888,533.98/65,991.40
  6. Step 6: Final answer
    x = 88,100.70

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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.