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Finding the Fourth Proportional to 7,370.90, 11,041.53 and 3,661.90

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Solution

The fourth proportional to 7,370.90, 11,041.53 and 3,661.90 is: 5,485.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,370.90 : 11,041.53 = 3,661.90 : x
  2. Step 2: Convert to fraction form
    7,370.90/11,041.53 = 3,661.90/x
  3. Step 3: Cross multiply
    7,370.90x = 11,041.53 × 3,661.90
  4. Step 4: Simplify right side
    7,370.90x = 40,432,978.71
  5. Step 5: Solve for x
    x = 40,432,978.71/7,370.90
  6. Step 6: Final answer
    x = 5,485.49

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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.