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Finding the Fourth Proportional to 43,894.68, 65,848.50 and 12,725.88

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Solution

The fourth proportional to 43,894.68, 65,848.50 and 12,725.88 is: 19,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,894.68 : 65,848.50 = 12,725.88 : x
  2. Step 2: Convert to fraction form
    43,894.68/65,848.50 = 12,725.88/x
  3. Step 3: Cross multiply
    43,894.68x = 65,848.50 × 12,725.88
  4. Step 4: Simplify right side
    43,894.68x = 837,980,109.18
  5. Step 5: Solve for x
    x = 837,980,109.18/43,894.68
  6. Step 6: Final answer
    x = 19,090.70

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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.