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Finding the Fourth Proportional to 25,622.72, 38,420.78 and 9,823.10

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Solution

The fourth proportional to 25,622.72, 38,420.78 and 9,823.10 is: 14,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,622.72 : 38,420.78 = 9,823.10 : x
  2. Step 2: Convert to fraction form
    25,622.72/38,420.78 = 9,823.10/x
  3. Step 3: Cross multiply
    25,622.72x = 38,420.78 × 9,823.10
  4. Step 4: Simplify right side
    25,622.72x = 377,411,164.02
  5. Step 5: Solve for x
    x = 377,411,164.02/25,622.72
  6. Step 6: Final answer
    x = 14,729.55

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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.