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Finding the Fourth Proportional to 61,758.88, 85,225.04 and 34,900.80

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Solution

The fourth proportional to 61,758.88, 85,225.04 and 34,900.80 is: 48,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,758.88 : 85,225.04 = 34,900.80 : x
  2. Step 2: Convert to fraction form
    61,758.88/85,225.04 = 34,900.80/x
  3. Step 3: Cross multiply
    61,758.88x = 85,225.04 × 34,900.80
  4. Step 4: Simplify right side
    61,758.88x = 2,974,421,854.35
  5. Step 5: Solve for x
    x = 2,974,421,854.35/61,758.88
  6. Step 6: Final answer
    x = 48,161.85

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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.