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Finding the Fourth Proportional to 21,598.84, 29,773.74 and 16,874.92

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Solution

The fourth proportional to 21,598.84, 29,773.74 and 16,874.92 is: 23,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.84 : 29,773.74 = 16,874.92 : x
  2. Step 2: Convert to fraction form
    21,598.84/29,773.74 = 16,874.92/x
  3. Step 3: Cross multiply
    21,598.84x = 29,773.74 × 16,874.92
  4. Step 4: Simplify right side
    21,598.84x = 502,429,480.60
  5. Step 5: Solve for x
    x = 502,429,480.60/21,598.84
  6. Step 6: Final answer
    x = 23,261.87

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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.