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Finding the Fourth Proportional to 8,907.87, 12,293.06 and 4,929.26

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Solution

The fourth proportional to 8,907.87, 12,293.06 and 4,929.26 is: 6,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.87 : 12,293.06 = 4,929.26 : x
  2. Step 2: Convert to fraction form
    8,907.87/12,293.06 = 4,929.26/x
  3. Step 3: Cross multiply
    8,907.87x = 12,293.06 × 4,929.26
  4. Step 4: Simplify right side
    8,907.87x = 60,595,602.82
  5. Step 5: Solve for x
    x = 60,595,602.82/8,907.87
  6. Step 6: Final answer
    x = 6,802.48

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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.