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Finding the Fourth Proportional to 86,513.67, 129,794.40 and 36,567.45

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Solution

The fourth proportional to 86,513.67, 129,794.40 and 36,567.45 is: 54,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.67 : 129,794.40 = 36,567.45 : x
  2. Step 2: Convert to fraction form
    86,513.67/129,794.40 = 36,567.45/x
  3. Step 3: Cross multiply
    86,513.67x = 129,794.40 × 36,567.45
  4. Step 4: Simplify right side
    86,513.67x = 4,746,250,232.28
  5. Step 5: Solve for x
    x = 4,746,250,232.28/86,513.67
  6. Step 6: Final answer
    x = 54,861.27

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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.