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Finding the Fourth Proportional to 7,362.10, 11,040.80 and 2,430.82

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Solution

The fourth proportional to 7,362.10, 11,040.80 and 2,430.82 is: 3,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,362.10 : 11,040.80 = 2,430.82 : x
  2. Step 2: Convert to fraction form
    7,362.10/11,040.80 = 2,430.82/x
  3. Step 3: Cross multiply
    7,362.10x = 11,040.80 × 2,430.82
  4. Step 4: Simplify right side
    7,362.10x = 26,838,197.46
  5. Step 5: Solve for x
    x = 26,838,197.46/7,362.10
  6. Step 6: Final answer
    x = 3,645.45

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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.