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Finding the Fourth Proportional to 50,969.55, 70,335.59 and 28,310.01

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Solution

The fourth proportional to 50,969.55, 70,335.59 and 28,310.01 is: 39,066.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,969.55 : 70,335.59 = 28,310.01 : x
  2. Step 2: Convert to fraction form
    50,969.55/70,335.59 = 28,310.01/x
  3. Step 3: Cross multiply
    50,969.55x = 70,335.59 × 28,310.01
  4. Step 4: Simplify right side
    50,969.55x = 1,991,201,256.26
  5. Step 5: Solve for x
    x = 1,991,201,256.26/50,969.55
  6. Step 6: Final answer
    x = 39,066.49

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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.