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Finding the Fourth Proportional to 56,678.70, 84,920.85 and 36,947.10

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Solution

The fourth proportional to 56,678.70, 84,920.85 and 36,947.10 is: 55,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,678.70 : 84,920.85 = 36,947.10 : x
  2. Step 2: Convert to fraction form
    56,678.70/84,920.85 = 36,947.10/x
  3. Step 3: Cross multiply
    56,678.70x = 84,920.85 × 36,947.10
  4. Step 4: Simplify right side
    56,678.70x = 3,137,579,137.04
  5. Step 5: Solve for x
    x = 3,137,579,137.04/56,678.70
  6. Step 6: Final answer
    x = 55,357.29

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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.