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Finding the Fourth Proportional to 14,894.40, 20,563.90 and 9,235.16

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Solution

The fourth proportional to 14,894.40, 20,563.90 and 9,235.16 is: 12,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.40 : 20,563.90 = 9,235.16 : x
  2. Step 2: Convert to fraction form
    14,894.40/20,563.90 = 9,235.16/x
  3. Step 3: Cross multiply
    14,894.40x = 20,563.90 × 9,235.16
  4. Step 4: Simplify right side
    14,894.40x = 189,910,906.72
  5. Step 5: Solve for x
    x = 189,910,906.72/14,894.40
  6. Step 6: Final answer
    x = 12,750.49

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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.