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Finding the Fourth Proportional to 61,747.76, 85,211.88 and 33,453.20

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Solution

The fourth proportional to 61,747.76, 85,211.88 and 33,453.20 is: 46,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,747.76 : 85,211.88 = 33,453.20 : x
  2. Step 2: Convert to fraction form
    61,747.76/85,211.88 = 33,453.20/x
  3. Step 3: Cross multiply
    61,747.76x = 85,211.88 × 33,453.20
  4. Step 4: Simplify right side
    61,747.76x = 2,850,610,064.02
  5. Step 5: Solve for x
    x = 2,850,610,064.02/61,747.76
  6. Step 6: Final answer
    x = 46,165.40

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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.