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Finding the Fourth Proportional to 39,857.52, 54,605.04 and 38,362.80

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Solution

The fourth proportional to 39,857.52, 54,605.04 and 38,362.80 is: 52,557.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.52 : 54,605.04 = 38,362.80 : x
  2. Step 2: Convert to fraction form
    39,857.52/54,605.04 = 38,362.80/x
  3. Step 3: Cross multiply
    39,857.52x = 54,605.04 × 38,362.80
  4. Step 4: Simplify right side
    39,857.52x = 2,094,802,228.51
  5. Step 5: Solve for x
    x = 2,094,802,228.51/39,857.52
  6. Step 6: Final answer
    x = 52,557.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.