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Finding the Fourth Proportional to 58,686.64, 80,978.88 and 33,186.22

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Solution

The fourth proportional to 58,686.64, 80,978.88 and 33,186.22 is: 45,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.64 : 80,978.88 = 33,186.22 : x
  2. Step 2: Convert to fraction form
    58,686.64/80,978.88 = 33,186.22/x
  3. Step 3: Cross multiply
    58,686.64x = 80,978.88 × 33,186.22
  4. Step 4: Simplify right side
    58,686.64x = 2,687,382,927.03
  5. Step 5: Solve for x
    x = 2,687,382,927.03/58,686.64
  6. Step 6: Final answer
    x = 45,792.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.