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Finding the Fourth Proportional to 53,843.28, 74,302.80 and 29,969.28

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Solution

The fourth proportional to 53,843.28, 74,302.80 and 29,969.28 is: 41,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.28 : 74,302.80 = 29,969.28 : x
  2. Step 2: Convert to fraction form
    53,843.28/74,302.80 = 29,969.28/x
  3. Step 3: Cross multiply
    53,843.28x = 74,302.80 × 29,969.28
  4. Step 4: Simplify right side
    53,843.28x = 2,226,801,417.98
  5. Step 5: Solve for x
    x = 2,226,801,417.98/53,843.28
  6. Step 6: Final answer
    x = 41,357.09

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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.