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Finding the Fourth Proportional to 10,927.94, 15,081.93 and 6,211.31

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Solution

The fourth proportional to 10,927.94, 15,081.93 and 6,211.31 is: 8,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.94 : 15,081.93 = 6,211.31 : x
  2. Step 2: Convert to fraction form
    10,927.94/15,081.93 = 6,211.31/x
  3. Step 3: Cross multiply
    10,927.94x = 15,081.93 × 6,211.31
  4. Step 4: Simplify right side
    10,927.94x = 93,678,467.22
  5. Step 5: Solve for x
    x = 93,678,467.22/10,927.94
  6. Step 6: Final answer
    x = 8,572.39

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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.