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Finding the Fourth Proportional to 65,393.92, 90,248.16 and 37,106.56

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Solution

The fourth proportional to 65,393.92, 90,248.16 and 37,106.56 is: 51,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.92 : 90,248.16 = 37,106.56 : x
  2. Step 2: Convert to fraction form
    65,393.92/90,248.16 = 37,106.56/x
  3. Step 3: Cross multiply
    65,393.92x = 90,248.16 × 37,106.56
  4. Step 4: Simplify right side
    65,393.92x = 3,348,798,763.93
  5. Step 5: Solve for x
    x = 3,348,798,763.93/65,393.92
  6. Step 6: Final answer
    x = 51,209.63

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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.