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Finding the Fourth Proportional to 65,310.76, 90,125.22 and 37,014.76

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Solution

The fourth proportional to 65,310.76, 90,125.22 and 37,014.76 is: 51,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,310.76 : 90,125.22 = 37,014.76 : x
  2. Step 2: Convert to fraction form
    65,310.76/90,125.22 = 37,014.76/x
  3. Step 3: Cross multiply
    65,310.76x = 90,125.22 × 37,014.76
  4. Step 4: Simplify right side
    65,310.76x = 3,335,963,388.25
  5. Step 5: Solve for x
    x = 3,335,963,388.25/65,310.76
  6. Step 6: Final answer
    x = 51,078.31

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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.