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Finding the Fourth Proportional to 7,974.41, 10,925.03 and 7,675.20

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Solution

The fourth proportional to 7,974.41, 10,925.03 and 7,675.20 is: 10,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.41 : 10,925.03 = 7,675.20 : x
  2. Step 2: Convert to fraction form
    7,974.41/10,925.03 = 7,675.20/x
  3. Step 3: Cross multiply
    7,974.41x = 10,925.03 × 7,675.20
  4. Step 4: Simplify right side
    7,974.41x = 83,851,809.44
  5. Step 5: Solve for x
    x = 83,851,809.44/7,974.41
  6. Step 6: Final answer
    x = 10,515.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.