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Finding the Fourth Proportional to 14,920.96, 22,368.48 and 8,752

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Solution

The fourth proportional to 14,920.96, 22,368.48 and 8,752 is: 13,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.96 : 22,368.48 = 8,752 : x
  2. Step 2: Convert to fraction form
    14,920.96/22,368.48 = 8,752/x
  3. Step 3: Cross multiply
    14,920.96x = 22,368.48 × 8,752
  4. Step 4: Simplify right side
    14,920.96x = 195,768,936.96
  5. Step 5: Solve for x
    x = 195,768,936.96/14,920.96
  6. Step 6: Final answer
    x = 13,120.40

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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.