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Finding the Fourth Proportional to 34,641.20, 51,961.92 and 9,681.09

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Solution

The fourth proportional to 34,641.20, 51,961.92 and 9,681.09 is: 14,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,641.20 : 51,961.92 = 9,681.09 : x
  2. Step 2: Convert to fraction form
    34,641.20/51,961.92 = 9,681.09/x
  3. Step 3: Cross multiply
    34,641.20x = 51,961.92 × 9,681.09
  4. Step 4: Simplify right side
    34,641.20x = 503,048,024.09
  5. Step 5: Solve for x
    x = 503,048,024.09/34,641.20
  6. Step 6: Final answer
    x = 14,521.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.