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Finding the Fourth Proportional to 64,004.80, 96,007.20 and 32,820.16

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Solution

The fourth proportional to 64,004.80, 96,007.20 and 32,820.16 is: 49,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,004.80 : 96,007.20 = 32,820.16 : x
  2. Step 2: Convert to fraction form
    64,004.80/96,007.20 = 32,820.16/x
  3. Step 3: Cross multiply
    64,004.80x = 96,007.20 × 32,820.16
  4. Step 4: Simplify right side
    64,004.80x = 3,150,971,665.15
  5. Step 5: Solve for x
    x = 3,150,971,665.15/64,004.80
  6. Step 6: Final answer
    x = 49,230.24

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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.