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Finding the Fourth Proportional to 37,398.78, 51,606.99 and 21,481.74

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Solution

The fourth proportional to 37,398.78, 51,606.99 and 21,481.74 is: 29,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,398.78 : 51,606.99 = 21,481.74 : x
  2. Step 2: Convert to fraction form
    37,398.78/51,606.99 = 21,481.74/x
  3. Step 3: Cross multiply
    37,398.78x = 51,606.99 × 21,481.74
  4. Step 4: Simplify right side
    37,398.78x = 1,108,607,941.36
  5. Step 5: Solve for x
    x = 1,108,607,941.36/37,398.78
  6. Step 6: Final answer
    x = 29,642.89

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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.