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Finding the Fourth Proportional to 65,924.80, 90,981.81 and 37,249.72

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Solution

The fourth proportional to 65,924.80, 90,981.81 and 37,249.72 is: 51,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,924.80 : 90,981.81 = 37,249.72 : x
  2. Step 2: Convert to fraction form
    65,924.80/90,981.81 = 37,249.72/x
  3. Step 3: Cross multiply
    65,924.80x = 90,981.81 × 37,249.72
  4. Step 4: Simplify right side
    65,924.80x = 3,389,046,947.59
  5. Step 5: Solve for x
    x = 3,389,046,947.59/65,924.80
  6. Step 6: Final answer
    x = 51,407.77

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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.