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Finding the Fourth Proportional to 65,854.40, 98,781.60 and 59,633.60

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Solution

The fourth proportional to 65,854.40, 98,781.60 and 59,633.60 is: 89,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,854.40 : 98,781.60 = 59,633.60 : x
  2. Step 2: Convert to fraction form
    65,854.40/98,781.60 = 59,633.60/x
  3. Step 3: Cross multiply
    65,854.40x = 98,781.60 × 59,633.60
  4. Step 4: Simplify right side
    65,854.40x = 5,890,702,421.76
  5. Step 5: Solve for x
    x = 5,890,702,421.76/65,854.40
  6. Step 6: Final answer
    x = 89,450.40

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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.