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Finding the Fourth Proportional to 8,981.70, 12,394.73 and 5,003.16

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Solution

The fourth proportional to 8,981.70, 12,394.73 and 5,003.16 is: 6,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.70 : 12,394.73 = 5,003.16 : x
  2. Step 2: Convert to fraction form
    8,981.70/12,394.73 = 5,003.16/x
  3. Step 3: Cross multiply
    8,981.70x = 12,394.73 × 5,003.16
  4. Step 4: Simplify right side
    8,981.70x = 62,012,817.35
  5. Step 5: Solve for x
    x = 62,012,817.35/8,981.70
  6. Step 6: Final answer
    x = 6,904.35

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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.