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Finding the Fourth Proportional to 7,956.70, 11,124.80 and 7,956.70

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Solution

The fourth proportional to 7,956.70, 11,124.80 and 7,956.70 is: 11,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.70 : 11,124.80 = 7,956.70 : x
  2. Step 2: Convert to fraction form
    7,956.70/11,124.80 = 7,956.70/x
  3. Step 3: Cross multiply
    7,956.70x = 11,124.80 × 7,956.70
  4. Step 4: Simplify right side
    7,956.70x = 88,516,696.16
  5. Step 5: Solve for x
    x = 88,516,696.16/7,956.70
  6. Step 6: Final answer
    x = 11,124.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.