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Finding the Fourth Proportional to 48,449.88, 66,859.90 and 29,587.01

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Solution

The fourth proportional to 48,449.88, 66,859.90 and 29,587.01 is: 40,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,449.88 : 66,859.90 = 29,587.01 : x
  2. Step 2: Convert to fraction form
    48,449.88/66,859.90 = 29,587.01/x
  3. Step 3: Cross multiply
    48,449.88x = 66,859.90 × 29,587.01
  4. Step 4: Simplify right side
    48,449.88x = 1,978,184,121.63
  5. Step 5: Solve for x
    x = 1,978,184,121.63/48,449.88
  6. Step 6: Final answer
    x = 40,829.49

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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.