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Finding the Fourth Proportional to 5,003.61, 7,502.87 and 1,670.66

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Solution

The fourth proportional to 5,003.61, 7,502.87 and 1,670.66 is: 2,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.61 : 7,502.87 = 1,670.66 : x
  2. Step 2: Convert to fraction form
    5,003.61/7,502.87 = 1,670.66/x
  3. Step 3: Cross multiply
    5,003.61x = 7,502.87 × 1,670.66
  4. Step 4: Simplify right side
    5,003.61x = 12,534,707.28
  5. Step 5: Solve for x
    x = 12,534,707.28/5,003.61
  6. Step 6: Final answer
    x = 2,505.14

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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.