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Finding the Fourth Proportional to 65,336.64, 90,159.48 and 37,046.88

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Solution

The fourth proportional to 65,336.64, 90,159.48 and 37,046.88 is: 51,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,336.64 : 90,159.48 = 37,046.88 : x
  2. Step 2: Convert to fraction form
    65,336.64/90,159.48 = 37,046.88/x
  3. Step 3: Cross multiply
    65,336.64x = 90,159.48 × 37,046.88
  4. Step 4: Simplify right side
    65,336.64x = 3,340,127,436.42
  5. Step 5: Solve for x
    x = 3,340,127,436.42/65,336.64
  6. Step 6: Final answer
    x = 51,121.81

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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.