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Finding the Fourth Proportional to 9,893.58, 13,649.22 and 5,913.24

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Solution

The fourth proportional to 9,893.58, 13,649.22 and 5,913.24 is: 8,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.58 : 13,649.22 = 5,913.24 : x
  2. Step 2: Convert to fraction form
    9,893.58/13,649.22 = 5,913.24/x
  3. Step 3: Cross multiply
    9,893.58x = 13,649.22 × 5,913.24
  4. Step 4: Simplify right side
    9,893.58x = 80,711,113.67
  5. Step 5: Solve for x
    x = 80,711,113.67/9,893.58
  6. Step 6: Final answer
    x = 8,157.93

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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.