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Finding the Fourth Proportional to 9,242.42, 12,755.86 and 5,263.90

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Solution

The fourth proportional to 9,242.42, 12,755.86 and 5,263.90 is: 7,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,242.42 : 12,755.86 = 5,263.90 : x
  2. Step 2: Convert to fraction form
    9,242.42/12,755.86 = 5,263.90/x
  3. Step 3: Cross multiply
    9,242.42x = 12,755.86 × 5,263.90
  4. Step 4: Simplify right side
    9,242.42x = 67,145,526.40
  5. Step 5: Solve for x
    x = 67,145,526.40/9,242.42
  6. Step 6: Final answer
    x = 7,264.93

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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.