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Finding the Fourth Proportional to 10,073.15, 15,114.90 and 7,622.99

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Solution

The fourth proportional to 10,073.15, 15,114.90 and 7,622.99 is: 11,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,073.15 : 15,114.90 = 7,622.99 : x
  2. Step 2: Convert to fraction form
    10,073.15/15,114.90 = 7,622.99/x
  3. Step 3: Cross multiply
    10,073.15x = 15,114.90 × 7,622.99
  4. Step 4: Simplify right side
    10,073.15x = 115,220,731.55
  5. Step 5: Solve for x
    x = 115,220,731.55/10,073.15
  6. Step 6: Final answer
    x = 11,438.40

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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.