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Finding the Fourth Proportional to 28,465.27, 42,698.42 and 8,744.00

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Solution

The fourth proportional to 28,465.27, 42,698.42 and 8,744.00 is: 13,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.27 : 42,698.42 = 8,744.00 : x
  2. Step 2: Convert to fraction form
    28,465.27/42,698.42 = 8,744.00/x
  3. Step 3: Cross multiply
    28,465.27x = 42,698.42 × 8,744.00
  4. Step 4: Simplify right side
    28,465.27x = 373,354,975.64
  5. Step 5: Solve for x
    x = 373,354,975.64/28,465.27
  6. Step 6: Final answer
    x = 13,116.16

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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.