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Finding the Fourth Proportional to 86,792.40, 130,164.30 and 27,646.20

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Solution

The fourth proportional to 86,792.40, 130,164.30 and 27,646.20 is: 41,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,792.40 : 130,164.30 = 27,646.20 : x
  2. Step 2: Convert to fraction form
    86,792.40/130,164.30 = 27,646.20/x
  3. Step 3: Cross multiply
    86,792.40x = 130,164.30 × 27,646.20
  4. Step 4: Simplify right side
    86,792.40x = 3,598,548,270.66
  5. Step 5: Solve for x
    x = 3,598,548,270.66/86,792.40
  6. Step 6: Final answer
    x = 41,461.56

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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.