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Finding the Fourth Proportional to 8,973.64, 12,383.26 and 4,994.64

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Solution

The fourth proportional to 8,973.64, 12,383.26 and 4,994.64 is: 6,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.64 : 12,383.26 = 4,994.64 : x
  2. Step 2: Convert to fraction form
    8,973.64/12,383.26 = 4,994.64/x
  3. Step 3: Cross multiply
    8,973.64x = 12,383.26 × 4,994.64
  4. Step 4: Simplify right side
    8,973.64x = 61,849,925.73
  5. Step 5: Solve for x
    x = 61,849,925.73/8,973.64
  6. Step 6: Final answer
    x = 6,892.40

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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.