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Finding the Fourth Proportional to 35,479.88, 48,937.62 and 28,765.76

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Solution

The fourth proportional to 35,479.88, 48,937.62 and 28,765.76 is: 39,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.88 : 48,937.62 = 28,765.76 : x
  2. Step 2: Convert to fraction form
    35,479.88/48,937.62 = 28,765.76/x
  3. Step 3: Cross multiply
    35,479.88x = 48,937.62 × 28,765.76
  4. Step 4: Simplify right side
    35,479.88x = 1,407,727,831.89
  5. Step 5: Solve for x
    x = 1,407,727,831.89/35,479.88
  6. Step 6: Final answer
    x = 39,676.79

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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.