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Finding the Fourth Proportional to 35,488.50, 48,974.49 and 21,341.58

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Solution

The fourth proportional to 35,488.50, 48,974.49 and 21,341.58 is: 29,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,488.50 : 48,974.49 = 21,341.58 : x
  2. Step 2: Convert to fraction form
    35,488.50/48,974.49 = 21,341.58/x
  3. Step 3: Cross multiply
    35,488.50x = 48,974.49 × 21,341.58
  4. Step 4: Simplify right side
    35,488.50x = 1,045,192,996.29
  5. Step 5: Solve for x
    x = 1,045,192,996.29/35,488.50
  6. Step 6: Final answer
    x = 29,451.60

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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.