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Finding the Fourth Proportional to 25,831.16, 38,742.58 and 7,358.84

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Solution

The fourth proportional to 25,831.16, 38,742.58 and 7,358.84 is: 11,037.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.16 : 38,742.58 = 7,358.84 : x
  2. Step 2: Convert to fraction form
    25,831.16/38,742.58 = 7,358.84/x
  3. Step 3: Cross multiply
    25,831.16x = 38,742.58 × 7,358.84
  4. Step 4: Simplify right side
    25,831.16x = 285,100,447.41
  5. Step 5: Solve for x
    x = 285,100,447.41/25,831.16
  6. Step 6: Final answer
    x = 11,037.07

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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.