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Finding the Fourth Proportional to 35,578.98, 49,098.60 and 19,663.45

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Solution

The fourth proportional to 35,578.98, 49,098.60 and 19,663.45 is: 27,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,578.98 : 49,098.60 = 19,663.45 : x
  2. Step 2: Convert to fraction form
    35,578.98/49,098.60 = 19,663.45/x
  3. Step 3: Cross multiply
    35,578.98x = 49,098.60 × 19,663.45
  4. Step 4: Simplify right side
    35,578.98x = 965,447,743.42
  5. Step 5: Solve for x
    x = 965,447,743.42/35,578.98
  6. Step 6: Final answer
    x = 27,135.34

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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.