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Finding the Fourth Proportional to 86,504.69, 129,808.28 and 36,582.05

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Solution

The fourth proportional to 86,504.69, 129,808.28 and 36,582.05 is: 54,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,504.69 : 129,808.28 = 36,582.05 : x
  2. Step 2: Convert to fraction form
    86,504.69/129,808.28 = 36,582.05/x
  3. Step 3: Cross multiply
    86,504.69x = 129,808.28 × 36,582.05
  4. Step 4: Simplify right side
    86,504.69x = 4,748,652,989.37
  5. Step 5: Solve for x
    x = 4,748,652,989.37/86,504.69
  6. Step 6: Final answer
    x = 54,894.75

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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.