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Finding the Fourth Proportional to 60,661.15, 83,667.83 and 40,206.22

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Solution

The fourth proportional to 60,661.15, 83,667.83 and 40,206.22 is: 55,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,661.15 : 83,667.83 = 40,206.22 : x
  2. Step 2: Convert to fraction form
    60,661.15/83,667.83 = 40,206.22/x
  3. Step 3: Cross multiply
    60,661.15x = 83,667.83 × 40,206.22
  4. Step 4: Simplify right side
    60,661.15x = 3,363,966,769.70
  5. Step 5: Solve for x
    x = 3,363,966,769.70/60,661.15
  6. Step 6: Final answer
    x = 55,455.05

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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.