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Finding the Fourth Proportional to 52,803.81, 79,205.76 and 21,660.93

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Solution

The fourth proportional to 52,803.81, 79,205.76 and 21,660.93 is: 32,491.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,803.81 : 79,205.76 = 21,660.93 : x
  2. Step 2: Convert to fraction form
    52,803.81/79,205.76 = 21,660.93/x
  3. Step 3: Cross multiply
    52,803.81x = 79,205.76 × 21,660.93
  4. Step 4: Simplify right side
    52,803.81x = 1,715,670,422.96
  5. Step 5: Solve for x
    x = 1,715,670,422.96/52,803.81
  6. Step 6: Final answer
    x = 32,491.41

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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.