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Finding the Fourth Proportional to 82,943.84, 124,415.76 and 27,539.84

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Solution

The fourth proportional to 82,943.84, 124,415.76 and 27,539.84 is: 41,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,943.84 : 124,415.76 = 27,539.84 : x
  2. Step 2: Convert to fraction form
    82,943.84/124,415.76 = 27,539.84/x
  3. Step 3: Cross multiply
    82,943.84x = 124,415.76 × 27,539.84
  4. Step 4: Simplify right side
    82,943.84x = 3,426,390,123.88
  5. Step 5: Solve for x
    x = 3,426,390,123.88/82,943.84
  6. Step 6: Final answer
    x = 41,309.76

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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.