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Finding the Fourth Proportional to 73,017.45, 100,764.09 and 39,483.45

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Solution

The fourth proportional to 73,017.45, 100,764.09 and 39,483.45 is: 54,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.45 : 100,764.09 = 39,483.45 : x
  2. Step 2: Convert to fraction form
    73,017.45/100,764.09 = 39,483.45/x
  3. Step 3: Cross multiply
    73,017.45x = 100,764.09 × 39,483.45
  4. Step 4: Simplify right side
    73,017.45x = 3,978,513,909.31
  5. Step 5: Solve for x
    x = 3,978,513,909.31/73,017.45
  6. Step 6: Final answer
    x = 54,487.17

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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.