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Finding the Fourth Proportional to 35,490.85, 48,976.51 and 19,574.95

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Solution

The fourth proportional to 35,490.85, 48,976.51 and 19,574.95 is: 27,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.85 : 48,976.51 = 19,574.95 : x
  2. Step 2: Convert to fraction form
    35,490.85/48,976.51 = 19,574.95/x
  3. Step 3: Cross multiply
    35,490.85x = 48,976.51 × 19,574.95
  4. Step 4: Simplify right side
    35,490.85x = 958,712,734.42
  5. Step 5: Solve for x
    x = 958,712,734.42/35,490.85
  6. Step 6: Final answer
    x = 27,012.96

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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.