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Finding the Fourth Proportional to 65,684.80, 98,498.40 and 26,228.80

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Solution

The fourth proportional to 65,684.80, 98,498.40 and 26,228.80 is: 39,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,684.80 : 98,498.40 = 26,228.80 : x
  2. Step 2: Convert to fraction form
    65,684.80/98,498.40 = 26,228.80/x
  3. Step 3: Cross multiply
    65,684.80x = 98,498.40 × 26,228.80
  4. Step 4: Simplify right side
    65,684.80x = 2,583,494,833.92
  5. Step 5: Solve for x
    x = 2,583,494,833.92/65,684.80
  6. Step 6: Final answer
    x = 39,331.70

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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.