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Finding the Fourth Proportional to 19,068.39, 28,602.78 and 5,217.39

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Solution

The fourth proportional to 19,068.39, 28,602.78 and 5,217.39 is: 7,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068.39 : 28,602.78 = 5,217.39 : x
  2. Step 2: Convert to fraction form
    19,068.39/28,602.78 = 5,217.39/x
  3. Step 3: Cross multiply
    19,068.39x = 28,602.78 × 5,217.39
  4. Step 4: Simplify right side
    19,068.39x = 149,231,858.34
  5. Step 5: Solve for x
    x = 149,231,858.34/19,068.39
  6. Step 6: Final answer
    x = 7,826.14

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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.