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Finding the Fourth Proportional to 8,907.68, 12,292.92 and 4,929.17

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Solution

The fourth proportional to 8,907.68, 12,292.92 and 4,929.17 is: 6,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.68 : 12,292.92 = 4,929.17 : x
  2. Step 2: Convert to fraction form
    8,907.68/12,292.92 = 4,929.17/x
  3. Step 3: Cross multiply
    8,907.68x = 12,292.92 × 4,929.17
  4. Step 4: Simplify right side
    8,907.68x = 60,593,892.48
  5. Step 5: Solve for x
    x = 60,593,892.48/8,907.68
  6. Step 6: Final answer
    x = 6,802.43

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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.