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Finding the Fourth Proportional to 86,552.10, 129,828.15 and 27,392.40

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Solution

The fourth proportional to 86,552.10, 129,828.15 and 27,392.40 is: 41,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,552.10 : 129,828.15 = 27,392.40 : x
  2. Step 2: Convert to fraction form
    86,552.10/129,828.15 = 27,392.40/x
  3. Step 3: Cross multiply
    86,552.10x = 129,828.15 × 27,392.40
  4. Step 4: Simplify right side
    86,552.10x = 3,556,304,616.06
  5. Step 5: Solve for x
    x = 3,556,304,616.06/86,552.10
  6. Step 6: Final answer
    x = 41,088.60

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Similar ratio
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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.