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Finding the Fourth Proportional to 6,573.60, 9,867.60 and 4,111.20

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Solution

The fourth proportional to 6,573.60, 9,867.60 and 4,111.20 is: 6,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573.60 : 9,867.60 = 4,111.20 : x
  2. Step 2: Convert to fraction form
    6,573.60/9,867.60 = 4,111.20/x
  3. Step 3: Cross multiply
    6,573.60x = 9,867.60 × 4,111.20
  4. Step 4: Simplify right side
    6,573.60x = 40,567,677.12
  5. Step 5: Solve for x
    x = 40,567,677.12/6,573.60
  6. Step 6: Final answer
    x = 6,171.30

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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.