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Finding the Fourth Proportional to 35,477.30, 53,151.15 and 28,867.70

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Solution

The fourth proportional to 35,477.30, 53,151.15 and 28,867.70 is: 43,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,477.30 : 53,151.15 = 28,867.70 : x
  2. Step 2: Convert to fraction form
    35,477.30/53,151.15 = 28,867.70/x
  3. Step 3: Cross multiply
    35,477.30x = 53,151.15 × 28,867.70
  4. Step 4: Simplify right side
    35,477.30x = 1,534,351,452.86
  5. Step 5: Solve for x
    x = 1,534,351,452.86/35,477.30
  6. Step 6: Final answer
    x = 43,248.82

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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.