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Finding the Fourth Proportional to 6,885.03, 9,502.15 and 4,090.53

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Solution

The fourth proportional to 6,885.03, 9,502.15 and 4,090.53 is: 5,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.03 : 9,502.15 = 4,090.53 : x
  2. Step 2: Convert to fraction form
    6,885.03/9,502.15 = 4,090.53/x
  3. Step 3: Cross multiply
    6,885.03x = 9,502.15 × 4,090.53
  4. Step 4: Simplify right side
    6,885.03x = 38,868,829.64
  5. Step 5: Solve for x
    x = 38,868,829.64/6,885.03
  6. Step 6: Final answer
    x = 5,645.41

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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.