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Finding the Fourth Proportional to 54,356.02, 74,979.45 and 34,180.90

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Solution

The fourth proportional to 54,356.02, 74,979.45 and 34,180.90 is: 47,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,356.02 : 74,979.45 = 34,180.90 : x
  2. Step 2: Convert to fraction form
    54,356.02/74,979.45 = 34,180.90/x
  3. Step 3: Cross multiply
    54,356.02x = 74,979.45 × 34,180.90
  4. Step 4: Simplify right side
    54,356.02x = 2,562,865,082.51
  5. Step 5: Solve for x
    x = 2,562,865,082.51/54,356.02
  6. Step 6: Final answer
    x = 47,149.61

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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.