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Finding the Fourth Proportional to 14,916.79, 22,367.88 and 8,678.98

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Solution

The fourth proportional to 14,916.79, 22,367.88 and 8,678.98 is: 13,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,916.79 : 22,367.88 = 8,678.98 : x
  2. Step 2: Convert to fraction form
    14,916.79/22,367.88 = 8,678.98/x
  3. Step 3: Cross multiply
    14,916.79x = 22,367.88 × 8,678.98
  4. Step 4: Simplify right side
    14,916.79x = 194,130,383.16
  5. Step 5: Solve for x
    x = 194,130,383.16/14,916.79
  6. Step 6: Final answer
    x = 13,014.22

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Why These Related Problems?

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