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Finding the Fourth Proportional to 24,990.84, 34,487.40 and 13,812.84

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Solution

The fourth proportional to 24,990.84, 34,487.40 and 13,812.84 is: 19,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,990.84 : 34,487.40 = 13,812.84 : x
  2. Step 2: Convert to fraction form
    24,990.84/34,487.40 = 13,812.84/x
  3. Step 3: Cross multiply
    24,990.84x = 34,487.40 × 13,812.84
  4. Step 4: Simplify right side
    24,990.84x = 476,368,938.22
  5. Step 5: Solve for x
    x = 476,368,938.22/24,990.84
  6. Step 6: Final answer
    x = 19,061.74

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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.