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Finding the Fourth Proportional to 25,365.38, 38,052.16 and 7,831.10

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Solution

The fourth proportional to 25,365.38, 38,052.16 and 7,831.10 is: 11,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,365.38 : 38,052.16 = 7,831.10 : x
  2. Step 2: Convert to fraction form
    25,365.38/38,052.16 = 7,831.10/x
  3. Step 3: Cross multiply
    25,365.38x = 38,052.16 × 7,831.10
  4. Step 4: Simplify right side
    25,365.38x = 297,990,270.18
  5. Step 5: Solve for x
    x = 297,990,270.18/25,365.38
  6. Step 6: Final answer
    x = 11,747.91

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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.