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Finding the Fourth Proportional to 14,859.92, 20,503.08 and 8,235.92

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Solution

The fourth proportional to 14,859.92, 20,503.08 and 8,235.92 is: 11,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.92 : 20,503.08 = 8,235.92 : x
  2. Step 2: Convert to fraction form
    14,859.92/20,503.08 = 8,235.92/x
  3. Step 3: Cross multiply
    14,859.92x = 20,503.08 × 8,235.92
  4. Step 4: Simplify right side
    14,859.92x = 168,861,726.63
  5. Step 5: Solve for x
    x = 168,861,726.63/14,859.92
  6. Step 6: Final answer
    x = 11,363.57

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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.