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Finding the Fourth Proportional to 15,984.91, 22,051.08 and 10,687.51

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Solution

The fourth proportional to 15,984.91, 22,051.08 and 10,687.51 is: 14,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.91 : 22,051.08 = 10,687.51 : x
  2. Step 2: Convert to fraction form
    15,984.91/22,051.08 = 10,687.51/x
  3. Step 3: Cross multiply
    15,984.91x = 22,051.08 × 10,687.51
  4. Step 4: Simplify right side
    15,984.91x = 235,671,138.01
  5. Step 5: Solve for x
    x = 235,671,138.01/15,984.91
  6. Step 6: Final answer
    x = 14,743.35

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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.