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Finding the Fourth Proportional to 58,671.84, 80,945.88 and 38,539.56

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Solution

The fourth proportional to 58,671.84, 80,945.88 and 38,539.56 is: 53,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,671.84 : 80,945.88 = 38,539.56 : x
  2. Step 2: Convert to fraction form
    58,671.84/80,945.88 = 38,539.56/x
  3. Step 3: Cross multiply
    58,671.84x = 80,945.88 × 38,539.56
  4. Step 4: Simplify right side
    58,671.84x = 3,119,618,599.01
  5. Step 5: Solve for x
    x = 3,119,618,599.01/58,671.84
  6. Step 6: Final answer
    x = 53,170.63

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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.