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Finding the Fourth Proportional to 9,358.76, 12,916.32 and 6,524.30

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Solution

The fourth proportional to 9,358.76, 12,916.32 and 6,524.30 is: 9,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.76 : 12,916.32 = 6,524.30 : x
  2. Step 2: Convert to fraction form
    9,358.76/12,916.32 = 6,524.30/x
  3. Step 3: Cross multiply
    9,358.76x = 12,916.32 × 6,524.30
  4. Step 4: Simplify right side
    9,358.76x = 84,269,946.58
  5. Step 5: Solve for x
    x = 84,269,946.58/9,358.76
  6. Step 6: Final answer
    x = 9,004.39

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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.