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Finding the Fourth Proportional to 9,798.80, 14,688.14 and 3,873.28

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Solution

The fourth proportional to 9,798.80, 14,688.14 and 3,873.28 is: 5,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.80 : 14,688.14 = 3,873.28 : x
  2. Step 2: Convert to fraction form
    9,798.80/14,688.14 = 3,873.28/x
  3. Step 3: Cross multiply
    9,798.80x = 14,688.14 × 3,873.28
  4. Step 4: Simplify right side
    9,798.80x = 56,891,277.89
  5. Step 5: Solve for x
    x = 56,891,277.89/9,798.80
  6. Step 6: Final answer
    x = 5,805.94

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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.