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Finding the Fourth Proportional to 19,266.36, 28,905.71 and 8,182.36

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Solution

The fourth proportional to 19,266.36, 28,905.71 and 8,182.36 is: 12,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.36 : 28,905.71 = 8,182.36 : x
  2. Step 2: Convert to fraction form
    19,266.36/28,905.71 = 8,182.36/x
  3. Step 3: Cross multiply
    19,266.36x = 28,905.71 × 8,182.36
  4. Step 4: Simplify right side
    19,266.36x = 236,516,925.28
  5. Step 5: Solve for x
    x = 236,516,925.28/19,266.36
  6. Step 6: Final answer
    x = 12,276.16

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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.