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Finding the Fourth Proportional to 47,753.99, 71,630.91 and 12,693.65

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Solution

The fourth proportional to 47,753.99, 71,630.91 and 12,693.65 is: 19,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,753.99 : 71,630.91 = 12,693.65 : x
  2. Step 2: Convert to fraction form
    47,753.99/71,630.91 = 12,693.65/x
  3. Step 3: Cross multiply
    47,753.99x = 71,630.91 × 12,693.65
  4. Step 4: Simplify right side
    47,753.99x = 909,257,342.57
  5. Step 5: Solve for x
    x = 909,257,342.57/47,753.99
  6. Step 6: Final answer
    x = 19,040.45

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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.