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Finding the Fourth Proportional to 7,951.77, 10,977.55 and 5,604.39

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Solution

The fourth proportional to 7,951.77, 10,977.55 and 5,604.39 is: 7,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.77 : 10,977.55 = 5,604.39 : x
  2. Step 2: Convert to fraction form
    7,951.77/10,977.55 = 5,604.39/x
  3. Step 3: Cross multiply
    7,951.77x = 10,977.55 × 5,604.39
  4. Step 4: Simplify right side
    7,951.77x = 61,522,457.43
  5. Step 5: Solve for x
    x = 61,522,457.43/7,951.77
  6. Step 6: Final answer
    x = 7,736.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.