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Finding the Fourth Proportional to 10,893.00, 15,031.10 and 6,112.32

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Solution

The fourth proportional to 10,893.00, 15,031.10 and 6,112.32 is: 8,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.00 : 15,031.10 = 6,112.32 : x
  2. Step 2: Convert to fraction form
    10,893.00/15,031.10 = 6,112.32/x
  3. Step 3: Cross multiply
    10,893.00x = 15,031.10 × 6,112.32
  4. Step 4: Simplify right side
    10,893.00x = 91,874,852.07
  5. Step 5: Solve for x
    x = 91,874,852.07/10,893.00
  6. Step 6: Final answer
    x = 8,434.30

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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.