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Finding the Fourth Proportional to 14,598.08, 20,145.28 and 7,974.08

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Solution

The fourth proportional to 14,598.08, 20,145.28 and 7,974.08 is: 11,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,598.08 : 20,145.28 = 7,974.08 : x
  2. Step 2: Convert to fraction form
    14,598.08/20,145.28 = 7,974.08/x
  3. Step 3: Cross multiply
    14,598.08x = 20,145.28 × 7,974.08
  4. Step 4: Simplify right side
    14,598.08x = 160,640,074.34
  5. Step 5: Solve for x
    x = 160,640,074.34/14,598.08
  6. Step 6: Final answer
    x = 11,004.19

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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.