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Finding the Fourth Proportional to 73,164.74, 100,967.45 and 39,630.66

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Solution

The fourth proportional to 73,164.74, 100,967.45 and 39,630.66 is: 54,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,164.74 : 100,967.45 = 39,630.66 : x
  2. Step 2: Convert to fraction form
    73,164.74/100,967.45 = 39,630.66/x
  3. Step 3: Cross multiply
    73,164.74x = 100,967.45 × 39,630.66
  4. Step 4: Simplify right side
    73,164.74x = 4,001,406,682.02
  5. Step 5: Solve for x
    x = 4,001,406,682.02/73,164.74
  6. Step 6: Final answer
    x = 54,690.37

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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.