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Finding the Fourth Proportional to 7,391.58, 11,089.29 and 3,693.66

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Solution

The fourth proportional to 7,391.58, 11,089.29 and 3,693.66 is: 5,541.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.58 : 11,089.29 = 3,693.66 : x
  2. Step 2: Convert to fraction form
    7,391.58/11,089.29 = 3,693.66/x
  3. Step 3: Cross multiply
    7,391.58x = 11,089.29 × 3,693.66
  4. Step 4: Simplify right side
    7,391.58x = 40,960,066.90
  5. Step 5: Solve for x
    x = 40,960,066.90/7,391.58
  6. Step 6: Final answer
    x = 5,541.45

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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.