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Finding the Fourth Proportional to 65,491.68, 90,373.14 and 37,201.62

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Solution

The fourth proportional to 65,491.68, 90,373.14 and 37,201.62 is: 51,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,491.68 : 90,373.14 = 37,201.62 : x
  2. Step 2: Convert to fraction form
    65,491.68/90,373.14 = 37,201.62/x
  3. Step 3: Cross multiply
    65,491.68x = 90,373.14 × 37,201.62
  4. Step 4: Simplify right side
    65,491.68x = 3,362,027,212.49
  5. Step 5: Solve for x
    x = 3,362,027,212.49/65,491.68
  6. Step 6: Final answer
    x = 51,335.18

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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.