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Finding the Fourth Proportional to 19,203.66, 28,807.92 and 9,334.62

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Solution

The fourth proportional to 19,203.66, 28,807.92 and 9,334.62 is: 14,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.66 : 28,807.92 = 9,334.62 : x
  2. Step 2: Convert to fraction form
    19,203.66/28,807.92 = 9,334.62/x
  3. Step 3: Cross multiply
    19,203.66x = 28,807.92 × 9,334.62
  4. Step 4: Simplify right side
    19,203.66x = 268,910,986.19
  5. Step 5: Solve for x
    x = 268,910,986.19/19,203.66
  6. Step 6: Final answer
    x = 14,003.11

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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.