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Finding the Fourth Proportional to 19,263.63, 28,883.91 and 8,005.39

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Solution

The fourth proportional to 19,263.63, 28,883.91 and 8,005.39 is: 12,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,263.63 : 28,883.91 = 8,005.39 : x
  2. Step 2: Convert to fraction form
    19,263.63/28,883.91 = 8,005.39/x
  3. Step 3: Cross multiply
    19,263.63x = 28,883.91 × 8,005.39
  4. Step 4: Simplify right side
    19,263.63x = 231,226,931.21
  5. Step 5: Solve for x
    x = 231,226,931.21/19,263.63
  6. Step 6: Final answer
    x = 12,003.29

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1.5x scale

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.