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Finding the Fourth Proportional to 6,915.58, 9,543.84 and 4,083.22

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Solution

The fourth proportional to 6,915.58, 9,543.84 and 4,083.22 is: 5,635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.58 : 9,543.84 = 4,083.22 : x
  2. Step 2: Convert to fraction form
    6,915.58/9,543.84 = 4,083.22/x
  3. Step 3: Cross multiply
    6,915.58x = 9,543.84 × 4,083.22
  4. Step 4: Simplify right side
    6,915.58x = 38,969,598.36
  5. Step 5: Solve for x
    x = 38,969,598.36/6,915.58
  6. Step 6: Final answer
    x = 5,635.04

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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.