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Finding the Fourth Proportional to 65,591.40, 98,435.70 and 26,176.80

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Solution

The fourth proportional to 65,591.40, 98,435.70 and 26,176.80 is: 39,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,591.40 : 98,435.70 = 26,176.80 : x
  2. Step 2: Convert to fraction form
    65,591.40/98,435.70 = 26,176.80/x
  3. Step 3: Cross multiply
    65,591.40x = 98,435.70 × 26,176.80
  4. Step 4: Simplify right side
    65,591.40x = 2,576,731,631.76
  5. Step 5: Solve for x
    x = 2,576,731,631.76/65,591.40
  6. Step 6: Final answer
    x = 39,284.60

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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.