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Finding the Fourth Proportional to 9,155.04, 13,731.48 and 2,999.04

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Solution

The fourth proportional to 9,155.04, 13,731.48 and 2,999.04 is: 4,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.04 : 13,731.48 = 2,999.04 : x
  2. Step 2: Convert to fraction form
    9,155.04/13,731.48 = 2,999.04/x
  3. Step 3: Cross multiply
    9,155.04x = 13,731.48 × 2,999.04
  4. Step 4: Simplify right side
    9,155.04x = 41,181,257.78
  5. Step 5: Solve for x
    x = 41,181,257.78/9,155.04
  6. Step 6: Final answer
    x = 4,498.21

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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.