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Finding the Fourth Proportional to 8,941.88, 12,352.02 and 7,261.40

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Solution

The fourth proportional to 8,941.88, 12,352.02 and 7,261.40 is: 10,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.88 : 12,352.02 = 7,261.40 : x
  2. Step 2: Convert to fraction form
    8,941.88/12,352.02 = 7,261.40/x
  3. Step 3: Cross multiply
    8,941.88x = 12,352.02 × 7,261.40
  4. Step 4: Simplify right side
    8,941.88x = 89,692,958.03
  5. Step 5: Solve for x
    x = 89,692,958.03/8,941.88
  6. Step 6: Final answer
    x = 10,030.66

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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.