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Finding the Fourth Proportional to 65,302.76, 90,117.80 and 35,494.76

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Solution

The fourth proportional to 65,302.76, 90,117.80 and 35,494.76 is: 48,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,302.76 : 90,117.80 = 35,494.76 : x
  2. Step 2: Convert to fraction form
    65,302.76/90,117.80 = 35,494.76/x
  3. Step 3: Cross multiply
    65,302.76x = 90,117.80 × 35,494.76
  4. Step 4: Simplify right side
    65,302.76x = 3,198,709,682.73
  5. Step 5: Solve for x
    x = 3,198,709,682.73/65,302.76
  6. Step 6: Final answer
    x = 48,982.76

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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.