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Finding the Fourth Proportional to 5,362.58, 7,400.82 and 3,124.66

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Solution

The fourth proportional to 5,362.58, 7,400.82 and 3,124.66 is: 4,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.58 : 7,400.82 = 3,124.66 : x
  2. Step 2: Convert to fraction form
    5,362.58/7,400.82 = 3,124.66/x
  3. Step 3: Cross multiply
    5,362.58x = 7,400.82 × 3,124.66
  4. Step 4: Simplify right side
    5,362.58x = 23,125,046.22
  5. Step 5: Solve for x
    x = 23,125,046.22/5,362.58
  6. Step 6: Final answer
    x = 4,312.30

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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.