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Finding the Fourth Proportional to 65,245.40, 97,868.10 and 18,498.68

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Solution

The fourth proportional to 65,245.40, 97,868.10 and 18,498.68 is: 27,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,245.40 : 97,868.10 = 18,498.68 : x
  2. Step 2: Convert to fraction form
    65,245.40/97,868.10 = 18,498.68/x
  3. Step 3: Cross multiply
    65,245.40x = 97,868.10 × 18,498.68
  4. Step 4: Simplify right side
    65,245.40x = 1,810,430,664.11
  5. Step 5: Solve for x
    x = 1,810,430,664.11/65,245.40
  6. Step 6: Final answer
    x = 27,748.02

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Similar ratio
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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.