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Finding the Fourth Proportional to 8,706.66, 12,014.37 and 4,929.36

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Solution

The fourth proportional to 8,706.66, 12,014.37 and 4,929.36 is: 6,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.66 : 12,014.37 = 4,929.36 : x
  2. Step 2: Convert to fraction form
    8,706.66/12,014.37 = 4,929.36/x
  3. Step 3: Cross multiply
    8,706.66x = 12,014.37 × 4,929.36
  4. Step 4: Simplify right side
    8,706.66x = 59,223,154.90
  5. Step 5: Solve for x
    x = 59,223,154.90/8,706.66
  6. Step 6: Final answer
    x = 6,802.05

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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.