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Finding the Fourth Proportional to 15,017.16, 20,724.17 and 8,303.01

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Solution

The fourth proportional to 15,017.16, 20,724.17 and 8,303.01 is: 11,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.16 : 20,724.17 = 8,303.01 : x
  2. Step 2: Convert to fraction form
    15,017.16/20,724.17 = 8,303.01/x
  3. Step 3: Cross multiply
    15,017.16x = 20,724.17 × 8,303.01
  4. Step 4: Simplify right side
    15,017.16x = 172,072,949.24
  5. Step 5: Solve for x
    x = 172,072,949.24/15,017.16
  6. Step 6: Final answer
    x = 11,458.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.