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Finding the Fourth Proportional to 64,464.80, 96,697.20 and 20,095.13

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Solution

The fourth proportional to 64,464.80, 96,697.20 and 20,095.13 is: 30,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,464.80 : 96,697.20 = 20,095.13 : x
  2. Step 2: Convert to fraction form
    64,464.80/96,697.20 = 20,095.13/x
  3. Step 3: Cross multiply
    64,464.80x = 96,697.20 × 20,095.13
  4. Step 4: Simplify right side
    64,464.80x = 1,943,142,804.64
  5. Step 5: Solve for x
    x = 1,943,142,804.64/64,464.80
  6. Step 6: Final answer
    x = 30,142.70

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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.