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Finding the Fourth Proportional to 7,326.15, 10,110.08 and 3,969.05

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Solution

The fourth proportional to 7,326.15, 10,110.08 and 3,969.05 is: 5,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.15 : 10,110.08 = 3,969.05 : x
  2. Step 2: Convert to fraction form
    7,326.15/10,110.08 = 3,969.05/x
  3. Step 3: Cross multiply
    7,326.15x = 10,110.08 × 3,969.05
  4. Step 4: Simplify right side
    7,326.15x = 40,127,403.10
  5. Step 5: Solve for x
    x = 40,127,403.10/7,326.15
  6. Step 6: Final answer
    x = 5,477.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.