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Finding the Fourth Proportional to 7,199.64, 9,935.46 and 4,056.84

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Solution

The fourth proportional to 7,199.64, 9,935.46 and 4,056.84 is: 5,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.64 : 9,935.46 = 4,056.84 : x
  2. Step 2: Convert to fraction form
    7,199.64/9,935.46 = 4,056.84/x
  3. Step 3: Cross multiply
    7,199.64x = 9,935.46 × 4,056.84
  4. Step 4: Simplify right side
    7,199.64x = 40,306,571.55
  5. Step 5: Solve for x
    x = 40,306,571.55/7,199.64
  6. Step 6: Final answer
    x = 5,598.41

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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.