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Finding the Fourth Proportional to 34,542.66, 47,668.87 and 19,638.66

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Solution

The fourth proportional to 34,542.66, 47,668.87 and 19,638.66 is: 27,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,542.66 : 47,668.87 = 19,638.66 : x
  2. Step 2: Convert to fraction form
    34,542.66/47,668.87 = 19,638.66/x
  3. Step 3: Cross multiply
    34,542.66x = 47,668.87 × 19,638.66
  4. Step 4: Simplify right side
    34,542.66x = 936,152,681.42
  5. Step 5: Solve for x
    x = 936,152,681.42/34,542.66
  6. Step 6: Final answer
    x = 27,101.35

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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.