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Finding the Fourth Proportional to 14,930.58, 20,605.90 and 8,965.52

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Solution

The fourth proportional to 14,930.58, 20,605.90 and 8,965.52 is: 12,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,930.58 : 20,605.90 = 8,965.52 : x
  2. Step 2: Convert to fraction form
    14,930.58/20,605.90 = 8,965.52/x
  3. Step 3: Cross multiply
    14,930.58x = 20,605.90 × 8,965.52
  4. Step 4: Simplify right side
    14,930.58x = 184,742,608.57
  5. Step 5: Solve for x
    x = 184,742,608.57/14,930.58
  6. Step 6: Final answer
    x = 12,373.44

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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.