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Finding the Fourth Proportional to 14,763.16, 22,148.48 and 4,905.20

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Solution

The fourth proportional to 14,763.16, 22,148.48 and 4,905.20 is: 7,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763.16 : 22,148.48 = 4,905.20 : x
  2. Step 2: Convert to fraction form
    14,763.16/22,148.48 = 4,905.20/x
  3. Step 3: Cross multiply
    14,763.16x = 22,148.48 × 4,905.20
  4. Step 4: Simplify right side
    14,763.16x = 108,642,724.10
  5. Step 5: Solve for x
    x = 108,642,724.10/14,763.16
  6. Step 6: Final answer
    x = 7,359.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.