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Finding the Fourth Proportional to 19,281.77, 28,923.23 and 5,241.74

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Solution

The fourth proportional to 19,281.77, 28,923.23 and 5,241.74 is: 7,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.77 : 28,923.23 = 5,241.74 : x
  2. Step 2: Convert to fraction form
    19,281.77/28,923.23 = 5,241.74/x
  3. Step 3: Cross multiply
    19,281.77x = 28,923.23 × 5,241.74
  4. Step 4: Simplify right side
    19,281.77x = 151,607,971.97
  5. Step 5: Solve for x
    x = 151,607,971.97/19,281.77
  6. Step 6: Final answer
    x = 7,862.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.