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Finding the Fourth Proportional to 43,742.54, 65,606.52 and 15,656.60

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Solution

The fourth proportional to 43,742.54, 65,606.52 and 15,656.60 is: 23,482.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,742.54 : 65,606.52 = 15,656.60 : x
  2. Step 2: Convert to fraction form
    43,742.54/65,606.52 = 15,656.60/x
  3. Step 3: Cross multiply
    43,742.54x = 65,606.52 × 15,656.60
  4. Step 4: Simplify right side
    43,742.54x = 1,027,175,041.03
  5. Step 5: Solve for x
    x = 1,027,175,041.03/43,742.54
  6. Step 6: Final answer
    x = 23,482.29

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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.