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Finding the Fourth Proportional to 5,602.70, 7,731.42 and 3,084.72

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Solution

The fourth proportional to 5,602.70, 7,731.42 and 3,084.72 is: 4,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,602.70 : 7,731.42 = 3,084.72 : x
  2. Step 2: Convert to fraction form
    5,602.70/7,731.42 = 3,084.72/x
  3. Step 3: Cross multiply
    5,602.70x = 7,731.42 × 3,084.72
  4. Step 4: Simplify right side
    5,602.70x = 23,849,265.90
  5. Step 5: Solve for x
    x = 23,849,265.90/5,602.70
  6. Step 6: Final answer
    x = 4,256.75

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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.