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Finding the Fourth Proportional to 65,508.86, 90,393.10 and 36,824.46

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Solution

The fourth proportional to 65,508.86, 90,393.10 and 36,824.46 is: 50,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,508.86 : 90,393.10 = 36,824.46 : x
  2. Step 2: Convert to fraction form
    65,508.86/90,393.10 = 36,824.46/x
  3. Step 3: Cross multiply
    65,508.86x = 90,393.10 × 36,824.46
  4. Step 4: Simplify right side
    65,508.86x = 3,328,677,095.23
  5. Step 5: Solve for x
    x = 3,328,677,095.23/65,508.86
  6. Step 6: Final answer
    x = 50,812.63

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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.