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Finding the Fourth Proportional to 5,792.76, 7,988.54 and 3,904.65

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Solution

The fourth proportional to 5,792.76, 7,988.54 and 3,904.65 is: 5,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.76 : 7,988.54 = 3,904.65 : x
  2. Step 2: Convert to fraction form
    5,792.76/7,988.54 = 3,904.65/x
  3. Step 3: Cross multiply
    5,792.76x = 7,988.54 × 3,904.65
  4. Step 4: Simplify right side
    5,792.76x = 31,192,433.19
  5. Step 5: Solve for x
    x = 31,192,433.19/5,792.76
  6. Step 6: Final answer
    x = 5,384.73

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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.