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Finding the Fourth Proportional to 9,248.76, 12,764.54 and 5,216.42

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Solution

The fourth proportional to 9,248.76, 12,764.54 and 5,216.42 is: 7,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,248.76 : 12,764.54 = 5,216.42 : x
  2. Step 2: Convert to fraction form
    9,248.76/12,764.54 = 5,216.42/x
  3. Step 3: Cross multiply
    9,248.76x = 12,764.54 × 5,216.42
  4. Step 4: Simplify right side
    9,248.76x = 66,585,131.40
  5. Step 5: Solve for x
    x = 66,585,131.40/9,248.76
  6. Step 6: Final answer
    x = 7,199.36

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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.