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Finding the Fourth Proportional to 7,690.04, 11,477.53 and 7,074.44

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Solution

The fourth proportional to 7,690.04, 11,477.53 and 7,074.44 is: 10,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.04 : 11,477.53 = 7,074.44 : x
  2. Step 2: Convert to fraction form
    7,690.04/11,477.53 = 7,074.44/x
  3. Step 3: Cross multiply
    7,690.04x = 11,477.53 × 7,074.44
  4. Step 4: Simplify right side
    7,690.04x = 81,197,097.33
  5. Step 5: Solve for x
    x = 81,197,097.33/7,690.04
  6. Step 6: Final answer
    x = 10,558.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.