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Finding the Fourth Proportional to 7,165.79, 10,752.87 and 3,005.48

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Solution

The fourth proportional to 7,165.79, 10,752.87 and 3,005.48 is: 4,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.79 : 10,752.87 = 3,005.48 : x
  2. Step 2: Convert to fraction form
    7,165.79/10,752.87 = 3,005.48/x
  3. Step 3: Cross multiply
    7,165.79x = 10,752.87 × 3,005.48
  4. Step 4: Simplify right side
    7,165.79x = 32,317,535.73
  5. Step 5: Solve for x
    x = 32,317,535.73/7,165.79
  6. Step 6: Final answer
    x = 4,509.98

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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.