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Finding the Fourth Proportional to 35,131.66, 48,480.66 and 19,215.77

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Solution

The fourth proportional to 35,131.66, 48,480.66 and 19,215.77 is: 26,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,131.66 : 48,480.66 = 19,215.77 : x
  2. Step 2: Convert to fraction form
    35,131.66/48,480.66 = 19,215.77/x
  3. Step 3: Cross multiply
    35,131.66x = 48,480.66 × 19,215.77
  4. Step 4: Simplify right side
    35,131.66x = 931,592,969.60
  5. Step 5: Solve for x
    x = 931,592,969.60/35,131.66
  6. Step 6: Final answer
    x = 26,517.19

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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.