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Finding the Fourth Proportional to 14,895.04, 20,555.64 and 8,181.04

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Solution

The fourth proportional to 14,895.04, 20,555.64 and 8,181.04 is: 11,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,895.04 : 20,555.64 = 8,181.04 : x
  2. Step 2: Convert to fraction form
    14,895.04/20,555.64 = 8,181.04/x
  3. Step 3: Cross multiply
    14,895.04x = 20,555.64 × 8,181.04
  4. Step 4: Simplify right side
    14,895.04x = 168,166,513.07
  5. Step 5: Solve for x
    x = 168,166,513.07/14,895.04
  6. Step 6: Final answer
    x = 11,290.10

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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.