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Finding the Fourth Proportional to 65,818.80, 98,663.40 and 32,511.60

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Solution

The fourth proportional to 65,818.80, 98,663.40 and 32,511.60 is: 48,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818.80 : 98,663.40 = 32,511.60 : x
  2. Step 2: Convert to fraction form
    65,818.80/98,663.40 = 32,511.60/x
  3. Step 3: Cross multiply
    65,818.80x = 98,663.40 × 32,511.60
  4. Step 4: Simplify right side
    65,818.80x = 3,207,704,995.44
  5. Step 5: Solve for x
    x = 3,207,704,995.44/65,818.80
  6. Step 6: Final answer
    x = 48,735.39

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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.