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Finding the Fourth Proportional to 7,161.97, 9,881.04 and 4,508.41

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Solution

The fourth proportional to 7,161.97, 9,881.04 and 4,508.41 is: 6,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.97 : 9,881.04 = 4,508.41 : x
  2. Step 2: Convert to fraction form
    7,161.97/9,881.04 = 4,508.41/x
  3. Step 3: Cross multiply
    7,161.97x = 9,881.04 × 4,508.41
  4. Step 4: Simplify right side
    7,161.97x = 44,547,779.55
  5. Step 5: Solve for x
    x = 44,547,779.55/7,161.97
  6. Step 6: Final answer
    x = 6,220.05

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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.