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Finding the Fourth Proportional to 11,585.82, 15,987.86 and 7,341.42

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Solution

The fourth proportional to 11,585.82, 15,987.86 and 7,341.42 is: 10,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.82 : 15,987.86 = 7,341.42 : x
  2. Step 2: Convert to fraction form
    11,585.82/15,987.86 = 7,341.42/x
  3. Step 3: Cross multiply
    11,585.82x = 15,987.86 × 7,341.42
  4. Step 4: Simplify right side
    11,585.82x = 117,373,595.16
  5. Step 5: Solve for x
    x = 117,373,595.16/11,585.82
  6. Step 6: Final answer
    x = 10,130.80

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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.