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Finding the Fourth Proportional to 14,848.66, 20,491.47 and 8,475.12

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Solution

The fourth proportional to 14,848.66, 20,491.47 and 8,475.12 is: 11,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,848.66 : 20,491.47 = 8,475.12 : x
  2. Step 2: Convert to fraction form
    14,848.66/20,491.47 = 8,475.12/x
  3. Step 3: Cross multiply
    14,848.66x = 20,491.47 × 8,475.12
  4. Step 4: Simplify right side
    14,848.66x = 173,667,667.23
  5. Step 5: Solve for x
    x = 173,667,667.23/14,848.66
  6. Step 6: Final answer
    x = 11,695.85

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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.