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Finding the Fourth Proportional to 54,633.64, 75,303.78 and 38,697.64

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Solution

The fourth proportional to 54,633.64, 75,303.78 and 38,697.64 is: 53,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,633.64 : 75,303.78 = 38,697.64 : x
  2. Step 2: Convert to fraction form
    54,633.64/75,303.78 = 38,697.64/x
  3. Step 3: Cross multiply
    54,633.64x = 75,303.78 × 38,697.64
  4. Step 4: Simplify right side
    54,633.64x = 2,914,078,569.08
  5. Step 5: Solve for x
    x = 2,914,078,569.08/54,633.64
  6. Step 6: Final answer
    x = 53,338.54

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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.