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Finding the Fourth Proportional to 65,862.48, 90,889.30 and 37,568.64

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Solution

The fourth proportional to 65,862.48, 90,889.30 and 37,568.64 is: 51,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,862.48 : 90,889.30 = 37,568.64 : x
  2. Step 2: Convert to fraction form
    65,862.48/90,889.30 = 37,568.64/x
  3. Step 3: Cross multiply
    65,862.48x = 90,889.30 × 37,568.64
  4. Step 4: Simplify right side
    65,862.48x = 3,414,586,843.18
  5. Step 5: Solve for x
    x = 3,414,586,843.18/65,862.48
  6. Step 6: Final answer
    x = 51,844.19

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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.