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Finding the Fourth Proportional to 29,647.12, 40,918.08 and 17,079.16

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Solution

The fourth proportional to 29,647.12, 40,918.08 and 17,079.16 is: 23,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.12 : 40,918.08 = 17,079.16 : x
  2. Step 2: Convert to fraction form
    29,647.12/40,918.08 = 17,079.16/x
  3. Step 3: Cross multiply
    29,647.12x = 40,918.08 × 17,079.16
  4. Step 4: Simplify right side
    29,647.12x = 698,846,435.21
  5. Step 5: Solve for x
    x = 698,846,435.21/29,647.12
  6. Step 6: Final answer
    x = 23,572.15

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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.