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Finding the Fourth Proportional to 35,029.16, 48,338.78 and 19,919.72

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Solution

The fourth proportional to 35,029.16, 48,338.78 and 19,919.72 is: 27,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,029.16 : 48,338.78 = 19,919.72 : x
  2. Step 2: Convert to fraction form
    35,029.16/48,338.78 = 19,919.72/x
  3. Step 3: Cross multiply
    35,029.16x = 48,338.78 × 19,919.72
  4. Step 4: Simplify right side
    35,029.16x = 962,894,983.99
  5. Step 5: Solve for x
    x = 962,894,983.99/35,029.16
  6. Step 6: Final answer
    x = 27,488.38

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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.