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Finding the Fourth Proportional to 34,515.74, 47,631.48 and 19,611.74

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Solution

The fourth proportional to 34,515.74, 47,631.48 and 19,611.74 is: 27,064.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515.74 : 47,631.48 = 19,611.74 : x
  2. Step 2: Convert to fraction form
    34,515.74/47,631.48 = 19,611.74/x
  3. Step 3: Cross multiply
    34,515.74x = 47,631.48 × 19,611.74
  4. Step 4: Simplify right side
    34,515.74x = 934,136,201.58
  5. Step 5: Solve for x
    x = 934,136,201.58/34,515.74
  6. Step 6: Final answer
    x = 27,064.06

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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.