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Finding the Fourth Proportional to 69,056.15, 103,638.90 and 26,956.40

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Solution

The fourth proportional to 69,056.15, 103,638.90 and 26,956.40 is: 40,455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,056.15 : 103,638.90 = 26,956.40 : x
  2. Step 2: Convert to fraction form
    69,056.15/103,638.90 = 26,956.40/x
  3. Step 3: Cross multiply
    69,056.15x = 103,638.90 × 26,956.40
  4. Step 4: Simplify right side
    69,056.15x = 2,793,731,643.96
  5. Step 5: Solve for x
    x = 2,793,731,643.96/69,056.15
  6. Step 6: Final answer
    x = 40,455.94

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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.