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Finding the Fourth Proportional to 14,862.92, 20,513.06 and 8,894.76

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Solution

The fourth proportional to 14,862.92, 20,513.06 and 8,894.76 is: 12,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.92 : 20,513.06 = 8,894.76 : x
  2. Step 2: Convert to fraction form
    14,862.92/20,513.06 = 8,894.76/x
  3. Step 3: Cross multiply
    14,862.92x = 20,513.06 × 8,894.76
  4. Step 4: Simplify right side
    14,862.92x = 182,458,745.57
  5. Step 5: Solve for x
    x = 182,458,745.57/14,862.92
  6. Step 6: Final answer
    x = 12,276.10

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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.