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Finding the Fourth Proportional to 73,019.96, 109,529.94 and 28,667.60

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Solution

The fourth proportional to 73,019.96, 109,529.94 and 28,667.60 is: 43,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,019.96 : 109,529.94 = 28,667.60 : x
  2. Step 2: Convert to fraction form
    73,019.96/109,529.94 = 28,667.60/x
  3. Step 3: Cross multiply
    73,019.96x = 109,529.94 × 28,667.60
  4. Step 4: Simplify right side
    73,019.96x = 3,139,960,507.94
  5. Step 5: Solve for x
    x = 3,139,960,507.94/73,019.96
  6. Step 6: Final answer
    x = 43,001.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.