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Finding the Fourth Proportional to 50,643.45, 75,978.38 and 29,601.45

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Solution

The fourth proportional to 50,643.45, 75,978.38 and 29,601.45 is: 44,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,643.45 : 75,978.38 = 29,601.45 : x
  2. Step 2: Convert to fraction form
    50,643.45/75,978.38 = 29,601.45/x
  3. Step 3: Cross multiply
    50,643.45x = 75,978.38 × 29,601.45
  4. Step 4: Simplify right side
    50,643.45x = 2,249,070,207.40
  5. Step 5: Solve for x
    x = 2,249,070,207.40/50,643.45
  6. Step 6: Final answer
    x = 44,409.89

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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.