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Finding the Fourth Proportional to 8,603.88, 11,873.48 and 5,018.74

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Solution

The fourth proportional to 8,603.88, 11,873.48 and 5,018.74 is: 6,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.88 : 11,873.48 = 5,018.74 : x
  2. Step 2: Convert to fraction form
    8,603.88/11,873.48 = 5,018.74/x
  3. Step 3: Cross multiply
    8,603.88x = 11,873.48 × 5,018.74
  4. Step 4: Simplify right side
    8,603.88x = 59,589,824.55
  5. Step 5: Solve for x
    x = 59,589,824.55/8,603.88
  6. Step 6: Final answer
    x = 6,925.92

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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.