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Finding the Fourth Proportional to 9,267.36, 13,899.36 and 3,720.48

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Solution

The fourth proportional to 9,267.36, 13,899.36 and 3,720.48 is: 5,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.36 : 13,899.36 = 3,720.48 : x
  2. Step 2: Convert to fraction form
    9,267.36/13,899.36 = 3,720.48/x
  3. Step 3: Cross multiply
    9,267.36x = 13,899.36 × 3,720.48
  4. Step 4: Simplify right side
    9,267.36x = 51,712,290.89
  5. Step 5: Solve for x
    x = 51,712,290.89/9,267.36
  6. Step 6: Final answer
    x = 5,580.05

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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.