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Finding the Fourth Proportional to 14,607.73, 21,912.81 and 4,746.79

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Solution

The fourth proportional to 14,607.73, 21,912.81 and 4,746.79 is: 7,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.73 : 21,912.81 = 4,746.79 : x
  2. Step 2: Convert to fraction form
    14,607.73/21,912.81 = 4,746.79/x
  3. Step 3: Cross multiply
    14,607.73x = 21,912.81 × 4,746.79
  4. Step 4: Simplify right side
    14,607.73x = 104,015,507.38
  5. Step 5: Solve for x
    x = 104,015,507.38/14,607.73
  6. Step 6: Final answer
    x = 7,120.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.