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Finding the Fourth Proportional to 86,253.84, 129,412.26 and 36,346.44

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Solution

The fourth proportional to 86,253.84, 129,412.26 and 36,346.44 is: 54,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.84 : 129,412.26 = 36,346.44 : x
  2. Step 2: Convert to fraction form
    86,253.84/129,412.26 = 36,346.44/x
  3. Step 3: Cross multiply
    86,253.84x = 129,412.26 × 36,346.44
  4. Step 4: Simplify right side
    86,253.84x = 4,703,674,943.35
  5. Step 5: Solve for x
    x = 4,703,674,943.35/86,253.84
  6. Step 6: Final answer
    x = 54,532.93

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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.