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Finding the Fourth Proportional to 5,795.22, 8,650.40 and 4,978.74

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Solution

The fourth proportional to 5,795.22, 8,650.40 and 4,978.74 is: 7,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,795.22 : 8,650.40 = 4,978.74 : x
  2. Step 2: Convert to fraction form
    5,795.22/8,650.40 = 4,978.74/x
  3. Step 3: Cross multiply
    5,795.22x = 8,650.40 × 4,978.74
  4. Step 4: Simplify right side
    5,795.22x = 43,068,092.50
  5. Step 5: Solve for x
    x = 43,068,092.50/5,795.22
  6. Step 6: Final answer
    x = 7,431.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.