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Finding the Fourth Proportional to 64,009.60, 96,014.40 and 41,891.20

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Solution

The fourth proportional to 64,009.60, 96,014.40 and 41,891.20 is: 62,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,009.60 : 96,014.40 = 41,891.20 : x
  2. Step 2: Convert to fraction form
    64,009.60/96,014.40 = 41,891.20/x
  3. Step 3: Cross multiply
    64,009.60x = 96,014.40 × 41,891.20
  4. Step 4: Simplify right side
    64,009.60x = 4,022,158,433.28
  5. Step 5: Solve for x
    x = 4,022,158,433.28/64,009.60
  6. Step 6: Final answer
    x = 62,836.80

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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.