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Finding the Fourth Proportional to 5,506.88, 7,599.42 and 2,989

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Solution

The fourth proportional to 5,506.88, 7,599.42 and 2,989 is: 4,124.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,506.88 : 7,599.42 = 2,989 : x
  2. Step 2: Convert to fraction form
    5,506.88/7,599.42 = 2,989/x
  3. Step 3: Cross multiply
    5,506.88x = 7,599.42 × 2,989
  4. Step 4: Simplify right side
    5,506.88x = 22,714,666.38
  5. Step 5: Solve for x
    x = 22,714,666.38/5,506.88
  6. Step 6: Final answer
    x = 4,124.78

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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.