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Finding the Fourth Proportional to 34,605.78, 47,756.97 and 19,498.62

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Solution

The fourth proportional to 34,605.78, 47,756.97 and 19,498.62 is: 26,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,605.78 : 47,756.97 = 19,498.62 : x
  2. Step 2: Convert to fraction form
    34,605.78/47,756.97 = 19,498.62/x
  3. Step 3: Cross multiply
    34,605.78x = 47,756.97 × 19,498.62
  4. Step 4: Simplify right side
    34,605.78x = 931,195,010.38
  5. Step 5: Solve for x
    x = 931,195,010.38/34,605.78
  6. Step 6: Final answer
    x = 26,908.66

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Half scale
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Double scale
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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.