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Finding the Fourth Proportional to 40,798.41, 61,203.80 and 14,496.90

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Solution

The fourth proportional to 40,798.41, 61,203.80 and 14,496.90 is: 21,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,798.41 : 61,203.80 = 14,496.90 : x
  2. Step 2: Convert to fraction form
    40,798.41/61,203.80 = 14,496.90/x
  3. Step 3: Cross multiply
    40,798.41x = 61,203.80 × 14,496.90
  4. Step 4: Simplify right side
    40,798.41x = 887,265,368.22
  5. Step 5: Solve for x
    x = 887,265,368.22/40,798.41
  6. Step 6: Final answer
    x = 21,747.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.