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Finding the Fourth Proportional to 29,111.60, 43,656.60 and 11,577.80

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Solution

The fourth proportional to 29,111.60, 43,656.60 and 11,577.80 is: 17,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.60 : 43,656.60 = 11,577.80 : x
  2. Step 2: Convert to fraction form
    29,111.60/43,656.60 = 11,577.80/x
  3. Step 3: Cross multiply
    29,111.60x = 43,656.60 × 11,577.80
  4. Step 4: Simplify right side
    29,111.60x = 505,447,383.48
  5. Step 5: Solve for x
    x = 505,447,383.48/29,111.60
  6. Step 6: Final answer
    x = 17,362.40

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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.