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Finding the Fourth Proportional to 38,445.84, 53,052.84 and 21,452.58

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Solution

The fourth proportional to 38,445.84, 53,052.84 and 21,452.58 is: 29,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.84 : 53,052.84 = 21,452.58 : x
  2. Step 2: Convert to fraction form
    38,445.84/53,052.84 = 21,452.58/x
  3. Step 3: Cross multiply
    38,445.84x = 53,052.84 × 21,452.58
  4. Step 4: Simplify right side
    38,445.84x = 1,138,120,294.33
  5. Step 5: Solve for x
    x = 1,138,120,294.33/38,445.84
  6. Step 6: Final answer
    x = 29,603.21

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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.