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Finding the Fourth Proportional to 19,297.78, 26,629.64 and 10,798.42

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Solution

The fourth proportional to 19,297.78, 26,629.64 and 10,798.42 is: 14,901.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,297.78 : 26,629.64 = 10,798.42 : x
  2. Step 2: Convert to fraction form
    19,297.78/26,629.64 = 10,798.42/x
  3. Step 3: Cross multiply
    19,297.78x = 26,629.64 × 10,798.42
  4. Step 4: Simplify right side
    19,297.78x = 287,558,037.17
  5. Step 5: Solve for x
    x = 287,558,037.17/19,297.78
  6. Step 6: Final answer
    x = 14,901.09

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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.