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Finding the Fourth Proportional to 56,229.87, 77,595.77 and 30,736.29

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Solution

The fourth proportional to 56,229.87, 77,595.77 and 30,736.29 is: 42,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,229.87 : 77,595.77 = 30,736.29 : x
  2. Step 2: Convert to fraction form
    56,229.87/77,595.77 = 30,736.29/x
  3. Step 3: Cross multiply
    56,229.87x = 77,595.77 × 30,736.29
  4. Step 4: Simplify right side
    56,229.87x = 2,385,006,129.80
  5. Step 5: Solve for x
    x = 2,385,006,129.80/56,229.87
  6. Step 6: Final answer
    x = 42,415.29

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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.