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Finding the Fourth Proportional to 34,572.48, 47,709.12 and 19,668.48

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Solution

The fourth proportional to 34,572.48, 47,709.12 and 19,668.48 is: 27,141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,572.48 : 47,709.12 = 19,668.48 : x
  2. Step 2: Convert to fraction form
    34,572.48/47,709.12 = 19,668.48/x
  3. Step 3: Cross multiply
    34,572.48x = 47,709.12 × 19,668.48
  4. Step 4: Simplify right side
    34,572.48x = 938,365,872.54
  5. Step 5: Solve for x
    x = 938,365,872.54/34,572.48
  6. Step 6: Final answer
    x = 27,141.99

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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.