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Finding the Fourth Proportional to 58,980.84, 81,387.48 and 36,316.20

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Solution

The fourth proportional to 58,980.84, 81,387.48 and 36,316.20 is: 50,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,980.84 : 81,387.48 = 36,316.20 : x
  2. Step 2: Convert to fraction form
    58,980.84/81,387.48 = 36,316.20/x
  3. Step 3: Cross multiply
    58,980.84x = 81,387.48 × 36,316.20
  4. Step 4: Simplify right side
    58,980.84x = 2,955,684,001.18
  5. Step 5: Solve for x
    x = 2,955,684,001.18/58,980.84
  6. Step 6: Final answer
    x = 50,112.61

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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.