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Finding the Fourth Proportional to 25,874.60, 38,812.08 and 11,071.04

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Solution

The fourth proportional to 25,874.60, 38,812.08 and 11,071.04 is: 16,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.60 : 38,812.08 = 11,071.04 : x
  2. Step 2: Convert to fraction form
    25,874.60/38,812.08 = 11,071.04/x
  3. Step 3: Cross multiply
    25,874.60x = 38,812.08 × 11,071.04
  4. Step 4: Simplify right side
    25,874.60x = 429,690,090.16
  5. Step 5: Solve for x
    x = 429,690,090.16/25,874.60
  6. Step 6: Final answer
    x = 16,606.64

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Why These Related Problems?

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