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Finding the Fourth Proportional to 8,817.76, 12,167.74 and 5,040.18

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Solution

The fourth proportional to 8,817.76, 12,167.74 and 5,040.18 is: 6,955.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.76 : 12,167.74 = 5,040.18 : x
  2. Step 2: Convert to fraction form
    8,817.76/12,167.74 = 5,040.18/x
  3. Step 3: Cross multiply
    8,817.76x = 12,167.74 × 5,040.18
  4. Step 4: Simplify right side
    8,817.76x = 61,327,599.79
  5. Step 5: Solve for x
    x = 61,327,599.79/8,817.76
  6. Step 6: Final answer
    x = 6,955.01

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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.