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Finding the Fourth Proportional to 65,901.58, 90,944.61 and 35,686.90

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Solution

The fourth proportional to 65,901.58, 90,944.61 and 35,686.90 is: 49,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,901.58 : 90,944.61 = 35,686.90 : x
  2. Step 2: Convert to fraction form
    65,901.58/90,944.61 = 35,686.90/x
  3. Step 3: Cross multiply
    65,901.58x = 90,944.61 × 35,686.90
  4. Step 4: Simplify right side
    65,901.58x = 3,245,531,182.46
  5. Step 5: Solve for x
    x = 3,245,531,182.46/65,901.58
  6. Step 6: Final answer
    x = 49,248.16

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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.