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Finding the Fourth Proportional to 64,005.20, 96,007.80 and 41,843.60

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Solution

The fourth proportional to 64,005.20, 96,007.80 and 41,843.60 is: 62,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.20 : 96,007.80 = 41,843.60 : x
  2. Step 2: Convert to fraction form
    64,005.20/96,007.80 = 41,843.60/x
  3. Step 3: Cross multiply
    64,005.20x = 96,007.80 × 41,843.60
  4. Step 4: Simplify right side
    64,005.20x = 4,017,311,980.08
  5. Step 5: Solve for x
    x = 4,017,311,980.08/64,005.20
  6. Step 6: Final answer
    x = 62,765.40

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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.