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Finding the Fourth Proportional to 54,801.36, 75,667.32 and 53,929.80

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Solution

The fourth proportional to 54,801.36, 75,667.32 and 53,929.80 is: 74,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,801.36 : 75,667.32 = 53,929.80 : x
  2. Step 2: Convert to fraction form
    54,801.36/75,667.32 = 53,929.80/x
  3. Step 3: Cross multiply
    54,801.36x = 75,667.32 × 53,929.80
  4. Step 4: Simplify right side
    54,801.36x = 4,080,723,434.14
  5. Step 5: Solve for x
    x = 4,080,723,434.14/54,801.36
  6. Step 6: Final answer
    x = 74,463.91

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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.