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Finding the Fourth Proportional to 64,693.42, 89,276.95 and 36,399.11

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Solution

The fourth proportional to 64,693.42, 89,276.95 and 36,399.11 is: 50,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693.42 : 89,276.95 = 36,399.11 : x
  2. Step 2: Convert to fraction form
    64,693.42/89,276.95 = 36,399.11/x
  3. Step 3: Cross multiply
    64,693.42x = 89,276.95 × 36,399.11
  4. Step 4: Simplify right side
    64,693.42x = 3,249,601,523.51
  5. Step 5: Solve for x
    x = 3,249,601,523.51/64,693.42
  6. Step 6: Final answer
    x = 50,230.79

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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.