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Finding the Fourth Proportional to 65,695.44, 90,660.39 and 37,402.95

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Solution

The fourth proportional to 65,695.44, 90,660.39 and 37,402.95 is: 51,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,695.44 : 90,660.39 = 37,402.95 : x
  2. Step 2: Convert to fraction form
    65,695.44/90,660.39 = 37,402.95/x
  3. Step 3: Cross multiply
    65,695.44x = 90,660.39 × 37,402.95
  4. Step 4: Simplify right side
    65,695.44x = 3,390,966,034.15
  5. Step 5: Solve for x
    x = 3,390,966,034.15/65,695.44
  6. Step 6: Final answer
    x = 51,616.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.