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Finding the Fourth Proportional to 5,008.63, 6,912.14 and 2,800.63

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Solution

The fourth proportional to 5,008.63, 6,912.14 and 2,800.63 is: 3,865.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.63 : 6,912.14 = 2,800.63 : x
  2. Step 2: Convert to fraction form
    5,008.63/6,912.14 = 2,800.63/x
  3. Step 3: Cross multiply
    5,008.63x = 6,912.14 × 2,800.63
  4. Step 4: Simplify right side
    5,008.63x = 19,358,319.09
  5. Step 5: Solve for x
    x = 19,358,319.09/5,008.63
  6. Step 6: Final answer
    x = 3,865.00

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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.