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Finding the Fourth Proportional to 21,873.61, 32,803.53 and 7,079.10

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Solution

The fourth proportional to 21,873.61, 32,803.53 and 7,079.10 is: 10,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.61 : 32,803.53 = 7,079.10 : x
  2. Step 2: Convert to fraction form
    21,873.61/32,803.53 = 7,079.10/x
  3. Step 3: Cross multiply
    21,873.61x = 32,803.53 × 7,079.10
  4. Step 4: Simplify right side
    21,873.61x = 232,219,469.22
  5. Step 5: Solve for x
    x = 232,219,469.22/21,873.61
  6. Step 6: Final answer
    x = 10,616.42

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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.