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Finding the Fourth Proportional to 29,281.84, 40,408.45 and 15,852.98

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Solution

The fourth proportional to 29,281.84, 40,408.45 and 15,852.98 is: 21,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.84 : 40,408.45 = 15,852.98 : x
  2. Step 2: Convert to fraction form
    29,281.84/40,408.45 = 15,852.98/x
  3. Step 3: Cross multiply
    29,281.84x = 40,408.45 × 15,852.98
  4. Step 4: Simplify right side
    29,281.84x = 640,594,500.24
  5. Step 5: Solve for x
    x = 640,594,500.24/29,281.84
  6. Step 6: Final answer
    x = 21,876.85

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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.