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Finding the Fourth Proportional to 16,710.60, 25,078.50 and 11,433

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Solution

The fourth proportional to 16,710.60, 25,078.50 and 11,433 is: 17,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,710.60 : 25,078.50 = 11,433 : x
  2. Step 2: Convert to fraction form
    16,710.60/25,078.50 = 11,433/x
  3. Step 3: Cross multiply
    16,710.60x = 25,078.50 × 11,433
  4. Step 4: Simplify right side
    16,710.60x = 286,722,490.50
  5. Step 5: Solve for x
    x = 286,722,490.50/16,710.60
  6. Step 6: Final answer
    x = 17,158.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.