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Finding the Fourth Proportional to 7,570.64, 11,336.92 and 4,788.88

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Solution

The fourth proportional to 7,570.64, 11,336.92 and 4,788.88 is: 7,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.64 : 11,336.92 = 4,788.88 : x
  2. Step 2: Convert to fraction form
    7,570.64/11,336.92 = 4,788.88/x
  3. Step 3: Cross multiply
    7,570.64x = 11,336.92 × 4,788.88
  4. Step 4: Simplify right side
    7,570.64x = 54,291,149.45
  5. Step 5: Solve for x
    x = 54,291,149.45/7,570.64
  6. Step 6: Final answer
    x = 7,171.28

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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.