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Finding the Fourth Proportional to 61,745.34, 85,212.50 and 37,868.76

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Solution

The fourth proportional to 61,745.34, 85,212.50 and 37,868.76 is: 52,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.34 : 85,212.50 = 37,868.76 : x
  2. Step 2: Convert to fraction form
    61,745.34/85,212.50 = 37,868.76/x
  3. Step 3: Cross multiply
    61,745.34x = 85,212.50 × 37,868.76
  4. Step 4: Simplify right side
    61,745.34x = 3,226,891,522.16
  5. Step 5: Solve for x
    x = 3,226,891,522.16/61,745.34
  6. Step 6: Final answer
    x = 52,261.30

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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.