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Finding the Fourth Proportional to 57,307.80, 79,081.74 and 32,156.76

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Solution

The fourth proportional to 57,307.80, 79,081.74 and 32,156.76 is: 44,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,307.80 : 79,081.74 = 32,156.76 : x
  2. Step 2: Convert to fraction form
    57,307.80/79,081.74 = 32,156.76/x
  3. Step 3: Cross multiply
    57,307.80x = 79,081.74 × 32,156.76
  4. Step 4: Simplify right side
    57,307.80x = 2,543,012,533.56
  5. Step 5: Solve for x
    x = 2,543,012,533.56/57,307.80
  6. Step 6: Final answer
    x = 44,374.63

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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.