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Finding the Fourth Proportional to 10,812.63, 14,921.43 and 5,844.63

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Solution

The fourth proportional to 10,812.63, 14,921.43 and 5,844.63 is: 8,065.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.63 : 14,921.43 = 5,844.63 : x
  2. Step 2: Convert to fraction form
    10,812.63/14,921.43 = 5,844.63/x
  3. Step 3: Cross multiply
    10,812.63x = 14,921.43 × 5,844.63
  4. Step 4: Simplify right side
    10,812.63x = 87,210,237.42
  5. Step 5: Solve for x
    x = 87,210,237.42/10,812.63
  6. Step 6: Final answer
    x = 8,065.59

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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.