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Finding the Fourth Proportional to 66,233.47, 91,398.49 and 37,940.98

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Solution

The fourth proportional to 66,233.47, 91,398.49 and 37,940.98 is: 52,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,233.47 : 91,398.49 = 37,940.98 : x
  2. Step 2: Convert to fraction form
    66,233.47/91,398.49 = 37,940.98/x
  3. Step 3: Cross multiply
    66,233.47x = 91,398.49 × 37,940.98
  4. Step 4: Simplify right side
    66,233.47x = 3,467,748,281.12
  5. Step 5: Solve for x
    x = 3,467,748,281.12/66,233.47
  6. Step 6: Final answer
    x = 52,356.43

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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.