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Finding the Fourth Proportional to 19,876.84, 27,430.58 and 10,924.45

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Solution

The fourth proportional to 19,876.84, 27,430.58 and 10,924.45 is: 15,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.84 : 27,430.58 = 10,924.45 : x
  2. Step 2: Convert to fraction form
    19,876.84/27,430.58 = 10,924.45/x
  3. Step 3: Cross multiply
    19,876.84x = 27,430.58 × 10,924.45
  4. Step 4: Simplify right side
    19,876.84x = 299,663,999.68
  5. Step 5: Solve for x
    x = 299,663,999.68/19,876.84
  6. Step 6: Final answer
    x = 15,076.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.