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Finding the Fourth Proportional to 14,338.76, 19,780.54 and 9,304.54

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Solution

The fourth proportional to 14,338.76, 19,780.54 and 9,304.54 is: 12,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,338.76 : 19,780.54 = 9,304.54 : x
  2. Step 2: Convert to fraction form
    14,338.76/19,780.54 = 9,304.54/x
  3. Step 3: Cross multiply
    14,338.76x = 19,780.54 × 9,304.54
  4. Step 4: Simplify right side
    14,338.76x = 184,048,752.94
  5. Step 5: Solve for x
    x = 184,048,752.94/14,338.76
  6. Step 6: Final answer
    x = 12,835.76

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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.