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Finding the Fourth Proportional to 65,276.92, 90,111.67 and 41,113.40

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Solution

The fourth proportional to 65,276.92, 90,111.67 and 41,113.40 is: 56,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,276.92 : 90,111.67 = 41,113.40 : x
  2. Step 2: Convert to fraction form
    65,276.92/90,111.67 = 41,113.40/x
  3. Step 3: Cross multiply
    65,276.92x = 90,111.67 × 41,113.40
  4. Step 4: Simplify right side
    65,276.92x = 3,704,797,133.38
  5. Step 5: Solve for x
    x = 3,704,797,133.38/65,276.92
  6. Step 6: Final answer
    x = 56,755.08

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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.