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Finding the Fourth Proportional to 7,774.68, 10,736.94 and 5,124.12

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Solution

The fourth proportional to 7,774.68, 10,736.94 and 5,124.12 is: 7,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.68 : 10,736.94 = 5,124.12 : x
  2. Step 2: Convert to fraction form
    7,774.68/10,736.94 = 5,124.12/x
  3. Step 3: Cross multiply
    7,774.68x = 10,736.94 × 5,124.12
  4. Step 4: Simplify right side
    7,774.68x = 55,017,368.99
  5. Step 5: Solve for x
    x = 55,017,368.99/7,774.68
  6. Step 6: Final answer
    x = 7,076.48

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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.