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Finding the Fourth Proportional to 19,392, 26,760.96 and 10,560

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Solution

The fourth proportional to 19,392, 26,760.96 and 10,560 is: 14,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392 : 26,760.96 = 10,560 : x
  2. Step 2: Convert to fraction form
    19,392/26,760.96 = 10,560/x
  3. Step 3: Cross multiply
    19,392x = 26,760.96 × 10,560
  4. Step 4: Simplify right side
    19,392x = 282,595,737.60
  5. Step 5: Solve for x
    x = 282,595,737.60/19,392
  6. Step 6: Final answer
    x = 14,572.80

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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.