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Finding the Fourth Proportional to 64,090.87, 96,147.24 and 19,716.64

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Solution

The fourth proportional to 64,090.87, 96,147.24 and 19,716.64 is: 29,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,090.87 : 96,147.24 = 19,716.64 : x
  2. Step 2: Convert to fraction form
    64,090.87/96,147.24 = 19,716.64/x
  3. Step 3: Cross multiply
    64,090.87x = 96,147.24 × 19,716.64
  4. Step 4: Simplify right side
    64,090.87x = 1,895,700,518.07
  5. Step 5: Solve for x
    x = 1,895,700,518.07/64,090.87
  6. Step 6: Final answer
    x = 29,578.32

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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.