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Finding the Fourth Proportional to 50,741.64, 70,023.29 and 28,385.64

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Solution

The fourth proportional to 50,741.64, 70,023.29 and 28,385.64 is: 39,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,741.64 : 70,023.29 = 28,385.64 : x
  2. Step 2: Convert to fraction form
    50,741.64/70,023.29 = 28,385.64/x
  3. Step 3: Cross multiply
    50,741.64x = 70,023.29 × 28,385.64
  4. Step 4: Simplify right side
    50,741.64x = 1,987,655,759.63
  5. Step 5: Solve for x
    x = 1,987,655,759.63/50,741.64
  6. Step 6: Final answer
    x = 39,172.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.