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Finding the Fourth Proportional to 8,597.76, 12,895.20 and 3,916.32

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Solution

The fourth proportional to 8,597.76, 12,895.20 and 3,916.32 is: 5,873.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.76 : 12,895.20 = 3,916.32 : x
  2. Step 2: Convert to fraction form
    8,597.76/12,895.20 = 3,916.32/x
  3. Step 3: Cross multiply
    8,597.76x = 12,895.20 × 3,916.32
  4. Step 4: Simplify right side
    8,597.76x = 50,501,729.66
  5. Step 5: Solve for x
    x = 50,501,729.66/8,597.76
  6. Step 6: Final answer
    x = 5,873.82

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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.