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Finding the Fourth Proportional to 7,199.82, 9,938.62 and 6,187.52

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Solution

The fourth proportional to 7,199.82, 9,938.62 and 6,187.52 is: 8,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.82 : 9,938.62 = 6,187.52 : x
  2. Step 2: Convert to fraction form
    7,199.82/9,938.62 = 6,187.52/x
  3. Step 3: Cross multiply
    7,199.82x = 9,938.62 × 6,187.52
  4. Step 4: Simplify right side
    7,199.82x = 61,495,407.80
  5. Step 5: Solve for x
    x = 61,495,407.80/7,199.82
  6. Step 6: Final answer
    x = 8,541.24

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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.