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Finding the Fourth Proportional to 65,190.80, 97,818.60 and 25,749.20

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Solution

The fourth proportional to 65,190.80, 97,818.60 and 25,749.20 is: 38,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,190.80 : 97,818.60 = 25,749.20 : x
  2. Step 2: Convert to fraction form
    65,190.80/97,818.60 = 25,749.20/x
  3. Step 3: Cross multiply
    65,190.80x = 97,818.60 × 25,749.20
  4. Step 4: Simplify right side
    65,190.80x = 2,518,750,695.12
  5. Step 5: Solve for x
    x = 2,518,750,695.12/65,190.80
  6. Step 6: Final answer
    x = 38,636.60

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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.