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Finding the Fourth Proportional to 37,788.25, 52,148.09 and 21,021.25

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Solution

The fourth proportional to 37,788.25, 52,148.09 and 21,021.25 is: 29,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,788.25 : 52,148.09 = 21,021.25 : x
  2. Step 2: Convert to fraction form
    37,788.25/52,148.09 = 21,021.25/x
  3. Step 3: Cross multiply
    37,788.25x = 52,148.09 × 21,021.25
  4. Step 4: Simplify right side
    37,788.25x = 1,096,218,036.91
  5. Step 5: Solve for x
    x = 1,096,218,036.91/37,788.25
  6. Step 6: Final answer
    x = 29,009.49

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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.