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Finding the Fourth Proportional to 66,614.23, 91,924.89 and 36,400.58

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Solution

The fourth proportional to 66,614.23, 91,924.89 and 36,400.58 is: 50,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614.23 : 91,924.89 = 36,400.58 : x
  2. Step 2: Convert to fraction form
    66,614.23/91,924.89 = 36,400.58/x
  3. Step 3: Cross multiply
    66,614.23x = 91,924.89 × 36,400.58
  4. Step 4: Simplify right side
    66,614.23x = 3,346,118,852.81
  5. Step 5: Solve for x
    x = 3,346,118,852.81/66,614.23
  6. Step 6: Final answer
    x = 50,231.30

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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.