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Finding the Fourth Proportional to 34,205.61, 47,211.62 and 20,063.01

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Solution

The fourth proportional to 34,205.61, 47,211.62 and 20,063.01 is: 27,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,205.61 : 47,211.62 = 20,063.01 : x
  2. Step 2: Convert to fraction form
    34,205.61/47,211.62 = 20,063.01/x
  3. Step 3: Cross multiply
    34,205.61x = 47,211.62 × 20,063.01
  4. Step 4: Simplify right side
    34,205.61x = 947,207,103.86
  5. Step 5: Solve for x
    x = 947,207,103.86/34,205.61
  6. Step 6: Final answer
    x = 27,691.57

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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.