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Finding the Fourth Proportional to 9,188.68, 12,686.46 and 7,060.44

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Solution

The fourth proportional to 9,188.68, 12,686.46 and 7,060.44 is: 9,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.68 : 12,686.46 = 7,060.44 : x
  2. Step 2: Convert to fraction form
    9,188.68/12,686.46 = 7,060.44/x
  3. Step 3: Cross multiply
    9,188.68x = 12,686.46 × 7,060.44
  4. Step 4: Simplify right side
    9,188.68x = 89,571,989.64
  5. Step 5: Solve for x
    x = 89,571,989.64/9,188.68
  6. Step 6: Final answer
    x = 9,748.08

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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.