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Finding the Fourth Proportional to 86,752.88, 130,127.52 and 27,588.68

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Solution

The fourth proportional to 86,752.88, 130,127.52 and 27,588.68 is: 41,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,752.88 : 130,127.52 = 27,588.68 : x
  2. Step 2: Convert to fraction form
    86,752.88/130,127.52 = 27,588.68/x
  3. Step 3: Cross multiply
    86,752.88x = 130,127.52 × 27,588.68
  4. Step 4: Simplify right side
    86,752.88x = 3,590,046,508.47
  5. Step 5: Solve for x
    x = 3,590,046,508.47/86,752.88
  6. Step 6: Final answer
    x = 41,382.45

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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.