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Finding the Fourth Proportional to 7,502.61, 11,256.54 and 3,342.99

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Solution

The fourth proportional to 7,502.61, 11,256.54 and 3,342.99 is: 5,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.61 : 11,256.54 = 3,342.99 : x
  2. Step 2: Convert to fraction form
    7,502.61/11,256.54 = 3,342.99/x
  3. Step 3: Cross multiply
    7,502.61x = 11,256.54 × 3,342.99
  4. Step 4: Simplify right side
    7,502.61x = 37,630,500.65
  5. Step 5: Solve for x
    x = 37,630,500.65/7,502.61
  6. Step 6: Final answer
    x = 5,015.65

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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.