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Finding the Fourth Proportional to 14,114.63, 21,171.94 and 4,880.63

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Solution

The fourth proportional to 14,114.63, 21,171.94 and 4,880.63 is: 7,320.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.63 : 21,171.94 = 4,880.63 : x
  2. Step 2: Convert to fraction form
    14,114.63/21,171.94 = 4,880.63/x
  3. Step 3: Cross multiply
    14,114.63x = 21,171.94 × 4,880.63
  4. Step 4: Simplify right side
    14,114.63x = 103,332,287.46
  5. Step 5: Solve for x
    x = 103,332,287.46/14,114.63
  6. Step 6: Final answer
    x = 7,320.94

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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.