Home / 43,938.08-65,907.20-12,773.60

Finding the Fourth Proportional to 43,938.08, 65,907.20 and 12,773.60

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Solution

The fourth proportional to 43,938.08, 65,907.20 and 12,773.60 is: 19,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,938.08 : 65,907.20 = 12,773.60 : x
  2. Step 2: Convert to fraction form
    43,938.08/65,907.20 = 12,773.60/x
  3. Step 3: Cross multiply
    43,938.08x = 65,907.20 × 12,773.60
  4. Step 4: Simplify right side
    43,938.08x = 841,872,209.92
  5. Step 5: Solve for x
    x = 841,872,209.92/43,938.08
  6. Step 6: Final answer
    x = 19,160.42

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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.