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Finding the Fourth Proportional to 64,694.88, 89,277.93 and 36,400.64

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Solution

The fourth proportional to 64,694.88, 89,277.93 and 36,400.64 is: 50,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.88 : 89,277.93 = 36,400.64 : x
  2. Step 2: Convert to fraction form
    64,694.88/89,277.93 = 36,400.64/x
  3. Step 3: Cross multiply
    64,694.88x = 89,277.93 × 36,400.64
  4. Step 4: Simplify right side
    64,694.88x = 3,249,773,343.49
  5. Step 5: Solve for x
    x = 3,249,773,343.49/64,694.88
  6. Step 6: Final answer
    x = 50,232.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.