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Finding the Fourth Proportional to 19,376.52, 29,064.80 and 4,784.52

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Solution

The fourth proportional to 19,376.52, 29,064.80 and 4,784.52 is: 7,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.52 : 29,064.80 = 4,784.52 : x
  2. Step 2: Convert to fraction form
    19,376.52/29,064.80 = 4,784.52/x
  3. Step 3: Cross multiply
    19,376.52x = 29,064.80 × 4,784.52
  4. Step 4: Simplify right side
    19,376.52x = 139,061,116.90
  5. Step 5: Solve for x
    x = 139,061,116.90/19,376.52
  6. Step 6: Final answer
    x = 7,176.78

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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.