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Finding the Fourth Proportional to 7,015.55, 9,671.81 and 5,099.49

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Solution

The fourth proportional to 7,015.55, 9,671.81 and 5,099.49 is: 7,030.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.55 : 9,671.81 = 5,099.49 : x
  2. Step 2: Convert to fraction form
    7,015.55/9,671.81 = 5,099.49/x
  3. Step 3: Cross multiply
    7,015.55x = 9,671.81 × 5,099.49
  4. Step 4: Simplify right side
    7,015.55x = 49,321,272.88
  5. Step 5: Solve for x
    x = 49,321,272.88/7,015.55
  6. Step 6: Final answer
    x = 7,030.28

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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.