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Finding the Fourth Proportional to 53,809, 74,252.80 and 29,934.80

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Solution

The fourth proportional to 53,809, 74,252.80 and 29,934.80 is: 41,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,809 : 74,252.80 = 29,934.80 : x
  2. Step 2: Convert to fraction form
    53,809/74,252.80 = 29,934.80/x
  3. Step 3: Cross multiply
    53,809x = 74,252.80 × 29,934.80
  4. Step 4: Simplify right side
    53,809x = 2,222,742,717.44
  5. Step 5: Solve for x
    x = 2,222,742,717.44/53,809
  6. Step 6: Final answer
    x = 41,308.01

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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.