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Finding the Fourth Proportional to 7,748.04, 11,615.54 and 3,362.20

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Solution

The fourth proportional to 7,748.04, 11,615.54 and 3,362.20 is: 5,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.04 : 11,615.54 = 3,362.20 : x
  2. Step 2: Convert to fraction form
    7,748.04/11,615.54 = 3,362.20/x
  3. Step 3: Cross multiply
    7,748.04x = 11,615.54 × 3,362.20
  4. Step 4: Simplify right side
    7,748.04x = 39,053,722.74
  5. Step 5: Solve for x
    x = 39,053,722.74/7,748.04
  6. Step 6: Final answer
    x = 5,040.46

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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.