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Finding the Fourth Proportional to 5,660.76, 7,811.86 and 3,302.46

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Solution

The fourth proportional to 5,660.76, 7,811.86 and 3,302.46 is: 4,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.76 : 7,811.86 = 3,302.46 : x
  2. Step 2: Convert to fraction form
    5,660.76/7,811.86 = 3,302.46/x
  3. Step 3: Cross multiply
    5,660.76x = 7,811.86 × 3,302.46
  4. Step 4: Simplify right side
    5,660.76x = 25,798,355.18
  5. Step 5: Solve for x
    x = 25,798,355.18/5,660.76
  6. Step 6: Final answer
    x = 4,557.40

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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.