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Finding the Fourth Proportional to 14,173, 21,260.40 and 4,313.01

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Solution

The fourth proportional to 14,173, 21,260.40 and 4,313.01 is: 6,469.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,173 : 21,260.40 = 4,313.01 : x
  2. Step 2: Convert to fraction form
    14,173/21,260.40 = 4,313.01/x
  3. Step 3: Cross multiply
    14,173x = 21,260.40 × 4,313.01
  4. Step 4: Simplify right side
    14,173x = 91,696,211.50
  5. Step 5: Solve for x
    x = 91,696,211.50/14,173
  6. Step 6: Final answer
    x = 6,469.78

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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.