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Finding the Fourth Proportional to 8,705.43, 12,014.24 and 4,929.26

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Solution

The fourth proportional to 8,705.43, 12,014.24 and 4,929.26 is: 6,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.43 : 12,014.24 = 4,929.26 : x
  2. Step 2: Convert to fraction form
    8,705.43/12,014.24 = 4,929.26/x
  3. Step 3: Cross multiply
    8,705.43x = 12,014.24 × 4,929.26
  4. Step 4: Simplify right side
    8,705.43x = 59,221,227.94
  5. Step 5: Solve for x
    x = 59,221,227.94/8,705.43
  6. Step 6: Final answer
    x = 6,802.79

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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.