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Finding the Fourth Proportional to 10,802.30, 14,908.06 and 6,086.90

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Solution

The fourth proportional to 10,802.30, 14,908.06 and 6,086.90 is: 8,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,802.30 : 14,908.06 = 6,086.90 : x
  2. Step 2: Convert to fraction form
    10,802.30/14,908.06 = 6,086.90/x
  3. Step 3: Cross multiply
    10,802.30x = 14,908.06 × 6,086.90
  4. Step 4: Simplify right side
    10,802.30x = 90,743,870.41
  5. Step 5: Solve for x
    x = 90,743,870.41/10,802.30
  6. Step 6: Final answer
    x = 8,400.42

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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.