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Finding the Fourth Proportional to 28,617.60, 43,041.60 and 25,622.40

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Solution

The fourth proportional to 28,617.60, 43,041.60 and 25,622.40 is: 38,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.60 : 43,041.60 = 25,622.40 : x
  2. Step 2: Convert to fraction form
    28,617.60/43,041.60 = 25,622.40/x
  3. Step 3: Cross multiply
    28,617.60x = 43,041.60 × 25,622.40
  4. Step 4: Simplify right side
    28,617.60x = 1,102,829,091.84
  5. Step 5: Solve for x
    x = 1,102,829,091.84/28,617.60
  6. Step 6: Final answer
    x = 38,536.74

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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.