Home / 25,831.20-38,746.80-7,360.80

Finding the Fourth Proportional to 25,831.20, 38,746.80 and 7,360.80

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Solution

The fourth proportional to 25,831.20, 38,746.80 and 7,360.80 is: 11,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.20 : 38,746.80 = 7,360.80 : x
  2. Step 2: Convert to fraction form
    25,831.20/38,746.80 = 7,360.80/x
  3. Step 3: Cross multiply
    25,831.20x = 38,746.80 × 7,360.80
  4. Step 4: Simplify right side
    25,831.20x = 285,207,445.44
  5. Step 5: Solve for x
    x = 285,207,445.44/25,831.20
  6. Step 6: Final answer
    x = 11,041.20

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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.