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Finding the Fourth Proportional to 7,551.76, 10,416.12 and 5,199.52

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Solution

The fourth proportional to 7,551.76, 10,416.12 and 5,199.52 is: 7,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.76 : 10,416.12 = 5,199.52 : x
  2. Step 2: Convert to fraction form
    7,551.76/10,416.12 = 5,199.52/x
  3. Step 3: Cross multiply
    7,551.76x = 10,416.12 × 5,199.52
  4. Step 4: Simplify right side
    7,551.76x = 54,158,824.26
  5. Step 5: Solve for x
    x = 54,158,824.26/7,551.76
  6. Step 6: Final answer
    x = 7,171.68

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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.