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Finding the Fourth Proportional to 1,831.84, 2,527.93 and 992.52

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Solution

The fourth proportional to 1,831.84, 2,527.93 and 992.52 is: 1,369.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.84 : 2,527.93 = 992.52 : x
  2. Step 2: Convert to fraction form
    1,831.84/2,527.93 = 992.52/x
  3. Step 3: Cross multiply
    1,831.84x = 2,527.93 × 992.52
  4. Step 4: Simplify right side
    1,831.84x = 2,509,021.08
  5. Step 5: Solve for x
    x = 2,509,021.08/1,831.84
  6. Step 6: Final answer
    x = 1,369.67

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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.