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Finding the Fourth Proportional to 34,803.42, 48,036.96 and 20,664.42

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Solution

The fourth proportional to 34,803.42, 48,036.96 and 20,664.42 is: 28,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,803.42 : 48,036.96 = 20,664.42 : x
  2. Step 2: Convert to fraction form
    34,803.42/48,036.96 = 20,664.42/x
  3. Step 3: Cross multiply
    34,803.42x = 48,036.96 × 20,664.42
  4. Step 4: Simplify right side
    34,803.42x = 992,655,916.96
  5. Step 5: Solve for x
    x = 992,655,916.96/34,803.42
  6. Step 6: Final answer
    x = 28,521.79

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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.