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Finding the Fourth Proportional to 58,652.72, 80,939.76 and 33,158.70

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Solution

The fourth proportional to 58,652.72, 80,939.76 and 33,158.70 is: 45,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,652.72 : 80,939.76 = 33,158.70 : x
  2. Step 2: Convert to fraction form
    58,652.72/80,939.76 = 33,158.70/x
  3. Step 3: Cross multiply
    58,652.72x = 80,939.76 × 33,158.70
  4. Step 4: Simplify right side
    58,652.72x = 2,683,857,219.91
  5. Step 5: Solve for x
    x = 2,683,857,219.91/58,652.72
  6. Step 6: Final answer
    x = 45,758.44

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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.