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Finding the Fourth Proportional to 19,354.84, 26,693.80 and 12,982.48

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Solution

The fourth proportional to 19,354.84, 26,693.80 and 12,982.48 is: 17,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.84 : 26,693.80 = 12,982.48 : x
  2. Step 2: Convert to fraction form
    19,354.84/26,693.80 = 12,982.48/x
  3. Step 3: Cross multiply
    19,354.84x = 26,693.80 × 12,982.48
  4. Step 4: Simplify right side
    19,354.84x = 346,551,724.62
  5. Step 5: Solve for x
    x = 346,551,724.62/19,354.84
  6. Step 6: Final answer
    x = 17,905.17

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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.