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Finding the Fourth Proportional to 82,853.20, 124,279.80 and 32,916.70

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Solution

The fourth proportional to 82,853.20, 124,279.80 and 32,916.70 is: 49,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,853.20 : 124,279.80 = 32,916.70 : x
  2. Step 2: Convert to fraction form
    82,853.20/124,279.80 = 32,916.70/x
  3. Step 3: Cross multiply
    82,853.20x = 124,279.80 × 32,916.70
  4. Step 4: Simplify right side
    82,853.20x = 4,090,880,892.66
  5. Step 5: Solve for x
    x = 4,090,880,892.66/82,853.20
  6. Step 6: Final answer
    x = 49,375.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.