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Finding the Fourth Proportional to 29,979.68, 44,959.84 and 9,983.84

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Solution

The fourth proportional to 29,979.68, 44,959.84 and 9,983.84 is: 14,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,979.68 : 44,959.84 = 9,983.84 : x
  2. Step 2: Convert to fraction form
    29,979.68/44,959.84 = 9,983.84/x
  3. Step 3: Cross multiply
    29,979.68x = 44,959.84 × 9,983.84
  4. Step 4: Simplify right side
    29,979.68x = 448,871,848.99
  5. Step 5: Solve for x
    x = 448,871,848.99/29,979.68
  6. Step 6: Final answer
    x = 14,972.54

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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.