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Finding the Fourth Proportional to 7,056.96, 9,738.65 and 4,072.92

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Solution

The fourth proportional to 7,056.96, 9,738.65 and 4,072.92 is: 5,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056.96 : 9,738.65 = 4,072.92 : x
  2. Step 2: Convert to fraction form
    7,056.96/9,738.65 = 4,072.92/x
  3. Step 3: Cross multiply
    7,056.96x = 9,738.65 × 4,072.92
  4. Step 4: Simplify right side
    7,056.96x = 39,664,742.36
  5. Step 5: Solve for x
    x = 39,664,742.36/7,056.96
  6. Step 6: Final answer
    x = 5,620.66

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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.