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Finding the Fourth Proportional to 21,472.68, 29,632.19 and 12,041.25

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Solution

The fourth proportional to 21,472.68, 29,632.19 and 12,041.25 is: 16,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.68 : 29,632.19 = 12,041.25 : x
  2. Step 2: Convert to fraction form
    21,472.68/29,632.19 = 12,041.25/x
  3. Step 3: Cross multiply
    21,472.68x = 29,632.19 × 12,041.25
  4. Step 4: Simplify right side
    21,472.68x = 356,808,607.84
  5. Step 5: Solve for x
    x = 356,808,607.84/21,472.68
  6. Step 6: Final answer
    x = 16,616.86

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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.