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Finding the Fourth Proportional to 8,941.40, 13,351.88 and 7,301.15

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Solution

The fourth proportional to 8,941.40, 13,351.88 and 7,301.15 is: 10,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.40 : 13,351.88 = 7,301.15 : x
  2. Step 2: Convert to fraction form
    8,941.40/13,351.88 = 7,301.15/x
  3. Step 3: Cross multiply
    8,941.40x = 13,351.88 × 7,301.15
  4. Step 4: Simplify right side
    8,941.40x = 97,483,975.40
  5. Step 5: Solve for x
    x = 97,483,975.40/8,941.40
  6. Step 6: Final answer
    x = 10,902.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.