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Finding the Fourth Proportional to 7,653.76, 10,560.60 and 5,005.08

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Solution

The fourth proportional to 7,653.76, 10,560.60 and 5,005.08 is: 6,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.76 : 10,560.60 = 5,005.08 : x
  2. Step 2: Convert to fraction form
    7,653.76/10,560.60 = 5,005.08/x
  3. Step 3: Cross multiply
    7,653.76x = 10,560.60 × 5,005.08
  4. Step 4: Simplify right side
    7,653.76x = 52,856,647.85
  5. Step 5: Solve for x
    x = 52,856,647.85/7,653.76
  6. Step 6: Final answer
    x = 6,905.97

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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.