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Finding the Fourth Proportional to 14,477.54, 21,715.76 and 5,243.54

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Solution

The fourth proportional to 14,477.54, 21,715.76 and 5,243.54 is: 7,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.54 : 21,715.76 = 5,243.54 : x
  2. Step 2: Convert to fraction form
    14,477.54/21,715.76 = 5,243.54/x
  3. Step 3: Cross multiply
    14,477.54x = 21,715.76 × 5,243.54
  4. Step 4: Simplify right side
    14,477.54x = 113,867,456.19
  5. Step 5: Solve for x
    x = 113,867,456.19/14,477.54
  6. Step 6: Final answer
    x = 7,865.11

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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.