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Finding the Fourth Proportional to 58,990.46, 81,421.54 and 36,348.86

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Solution

The fourth proportional to 58,990.46, 81,421.54 and 36,348.86 is: 50,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,990.46 : 81,421.54 = 36,348.86 : x
  2. Step 2: Convert to fraction form
    58,990.46/81,421.54 = 36,348.86/x
  3. Step 3: Cross multiply
    58,990.46x = 81,421.54 × 36,348.86
  4. Step 4: Simplify right side
    58,990.46x = 2,959,580,158.44
  5. Step 5: Solve for x
    x = 2,959,580,158.44/58,990.46
  6. Step 6: Final answer
    x = 50,170.49

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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.