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Finding the Fourth Proportional to 16,410.32, 24,619.04 and 5,318.12

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Solution

The fourth proportional to 16,410.32, 24,619.04 and 5,318.12 is: 7,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,410.32 : 24,619.04 = 5,318.12 : x
  2. Step 2: Convert to fraction form
    16,410.32/24,619.04 = 5,318.12/x
  3. Step 3: Cross multiply
    16,410.32x = 24,619.04 × 5,318.12
  4. Step 4: Simplify right side
    16,410.32x = 130,927,009.00
  5. Step 5: Solve for x
    x = 130,927,009.00/16,410.32
  6. Step 6: Final answer
    x = 7,978.33

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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.