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Finding the Fourth Proportional to 6,594.40, 9,915.90 and 5,525.20

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Solution

The fourth proportional to 6,594.40, 9,915.90 and 5,525.20 is: 8,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,594.40 : 9,915.90 = 5,525.20 : x
  2. Step 2: Convert to fraction form
    6,594.40/9,915.90 = 5,525.20/x
  3. Step 3: Cross multiply
    6,594.40x = 9,915.90 × 5,525.20
  4. Step 4: Simplify right side
    6,594.40x = 54,787,330.68
  5. Step 5: Solve for x
    x = 54,787,330.68/6,594.40
  6. Step 6: Final answer
    x = 8,308.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.