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Finding the Fourth Proportional to 9,640.20, 14,460.30 and 7,048.20

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Solution

The fourth proportional to 9,640.20, 14,460.30 and 7,048.20 is: 10,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.20 : 14,460.30 = 7,048.20 : x
  2. Step 2: Convert to fraction form
    9,640.20/14,460.30 = 7,048.20/x
  3. Step 3: Cross multiply
    9,640.20x = 14,460.30 × 7,048.20
  4. Step 4: Simplify right side
    9,640.20x = 101,919,086.46
  5. Step 5: Solve for x
    x = 101,919,086.46/9,640.20
  6. Step 6: Final answer
    x = 10,572.30

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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.