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Finding the Fourth Proportional to 65,615.60, 98,423.40 and 36,124.40

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Solution

The fourth proportional to 65,615.60, 98,423.40 and 36,124.40 is: 54,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,615.60 : 98,423.40 = 36,124.40 : x
  2. Step 2: Convert to fraction form
    65,615.60/98,423.40 = 36,124.40/x
  3. Step 3: Cross multiply
    65,615.60x = 98,423.40 × 36,124.40
  4. Step 4: Simplify right side
    65,615.60x = 3,555,486,270.96
  5. Step 5: Solve for x
    x = 3,555,486,270.96/65,615.60
  6. Step 6: Final answer
    x = 54,186.60

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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.