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Finding the Fourth Proportional to 57,714.40, 86,571.60 and 32,831.20

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Solution

The fourth proportional to 57,714.40, 86,571.60 and 32,831.20 is: 49,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,714.40 : 86,571.60 = 32,831.20 : x
  2. Step 2: Convert to fraction form
    57,714.40/86,571.60 = 32,831.20/x
  3. Step 3: Cross multiply
    57,714.40x = 86,571.60 × 32,831.20
  4. Step 4: Simplify right side
    57,714.40x = 2,842,249,513.92
  5. Step 5: Solve for x
    x = 2,842,249,513.92/57,714.40
  6. Step 6: Final answer
    x = 49,246.80

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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.