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Finding the Fourth Proportional to 19,165.86, 28,748.79 and 16,560.90

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Solution

The fourth proportional to 19,165.86, 28,748.79 and 16,560.90 is: 24,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.86 : 28,748.79 = 16,560.90 : x
  2. Step 2: Convert to fraction form
    19,165.86/28,748.79 = 16,560.90/x
  3. Step 3: Cross multiply
    19,165.86x = 28,748.79 × 16,560.90
  4. Step 4: Simplify right side
    19,165.86x = 476,105,836.31
  5. Step 5: Solve for x
    x = 476,105,836.31/19,165.86
  6. Step 6: Final answer
    x = 24,841.35

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1.5x scale

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.