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Finding the Fourth Proportional to 12,038.34, 18,063.99 and 5,023.20

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Solution

The fourth proportional to 12,038.34, 18,063.99 and 5,023.20 is: 7,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.34 : 18,063.99 = 5,023.20 : x
  2. Step 2: Convert to fraction form
    12,038.34/18,063.99 = 5,023.20/x
  3. Step 3: Cross multiply
    12,038.34x = 18,063.99 × 5,023.20
  4. Step 4: Simplify right side
    12,038.34x = 90,739,034.57
  5. Step 5: Solve for x
    x = 90,739,034.57/12,038.34
  6. Step 6: Final answer
    x = 7,537.50

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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.