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Finding the Fourth Proportional to 28,925.40, 43,301.70 and 25,469.40

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Solution

The fourth proportional to 28,925.40, 43,301.70 and 25,469.40 is: 38,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.40 : 43,301.70 = 25,469.40 : x
  2. Step 2: Convert to fraction form
    28,925.40/43,301.70 = 25,469.40/x
  3. Step 3: Cross multiply
    28,925.40x = 43,301.70 × 25,469.40
  4. Step 4: Simplify right side
    28,925.40x = 1,102,868,317.98
  5. Step 5: Solve for x
    x = 1,102,868,317.98/28,925.40
  6. Step 6: Final answer
    x = 38,128.02

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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.