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Finding the Fourth Proportional to 19,034.92, 28,554.78 and 7,358.44

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Solution

The fourth proportional to 19,034.92, 28,554.78 and 7,358.44 is: 11,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,034.92 : 28,554.78 = 7,358.44 : x
  2. Step 2: Convert to fraction form
    19,034.92/28,554.78 = 7,358.44/x
  3. Step 3: Cross multiply
    19,034.92x = 28,554.78 × 7,358.44
  4. Step 4: Simplify right side
    19,034.92x = 210,118,635.34
  5. Step 5: Solve for x
    x = 210,118,635.34/19,034.92
  6. Step 6: Final answer
    x = 11,038.59

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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.