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Finding the Fourth Proportional to 7,099.58, 9,797.86 and 3,955.77

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Solution

The fourth proportional to 7,099.58, 9,797.86 and 3,955.77 is: 5,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.58 : 9,797.86 = 3,955.77 : x
  2. Step 2: Convert to fraction form
    7,099.58/9,797.86 = 3,955.77/x
  3. Step 3: Cross multiply
    7,099.58x = 9,797.86 × 3,955.77
  4. Step 4: Simplify right side
    7,099.58x = 38,758,085.60
  5. Step 5: Solve for x
    x = 38,758,085.60/7,099.58
  6. Step 6: Final answer
    x = 5,459.21

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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.