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Finding the Fourth Proportional to 9,916.10, 14,874.75 and 4,372.05

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Solution

The fourth proportional to 9,916.10, 14,874.75 and 4,372.05 is: 6,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.10 : 14,874.75 = 4,372.05 : x
  2. Step 2: Convert to fraction form
    9,916.10/14,874.75 = 4,372.05/x
  3. Step 3: Cross multiply
    9,916.10x = 14,874.75 × 4,372.05
  4. Step 4: Simplify right side
    9,916.10x = 65,033,150.74
  5. Step 5: Solve for x
    x = 65,033,150.74/9,916.10
  6. Step 6: Final answer
    x = 6,558.34

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1.5x scale

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.