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Finding the Fourth Proportional to 8,886.51, 13,330.98 and 8,339.76

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Solution

The fourth proportional to 8,886.51, 13,330.98 and 8,339.76 is: 12,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.51 : 13,330.98 = 8,339.76 : x
  2. Step 2: Convert to fraction form
    8,886.51/13,330.98 = 8,339.76/x
  3. Step 3: Cross multiply
    8,886.51x = 13,330.98 × 8,339.76
  4. Step 4: Simplify right side
    8,886.51x = 111,177,173.76
  5. Step 5: Solve for x
    x = 111,177,173.76/8,886.51
  6. Step 6: Final answer
    x = 12,510.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.