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Finding the Fourth Proportional to 65,398.75, 98,099.05 and 18,651.63

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Solution

The fourth proportional to 65,398.75, 98,099.05 and 18,651.63 is: 27,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,398.75 : 98,099.05 = 18,651.63 : x
  2. Step 2: Convert to fraction form
    65,398.75/98,099.05 = 18,651.63/x
  3. Step 3: Cross multiply
    65,398.75x = 98,099.05 × 18,651.63
  4. Step 4: Simplify right side
    65,398.75x = 1,829,706,693.46
  5. Step 5: Solve for x
    x = 1,829,706,693.46/65,398.75
  6. Step 6: Final answer
    x = 27,977.70

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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.