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Finding the Fourth Proportional to 61,638.93, 85,001.28 and 37,443.42

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Solution

The fourth proportional to 61,638.93, 85,001.28 and 37,443.42 is: 51,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638.93 : 85,001.28 = 37,443.42 : x
  2. Step 2: Convert to fraction form
    61,638.93/85,001.28 = 37,443.42/x
  3. Step 3: Cross multiply
    61,638.93x = 85,001.28 × 37,443.42
  4. Step 4: Simplify right side
    61,638.93x = 3,182,738,627.58
  5. Step 5: Solve for x
    x = 3,182,738,627.58/61,638.93
  6. Step 6: Final answer
    x = 51,635.20

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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.