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Finding the Fourth Proportional to 66,364.77, 99,561.72 and 48,781.29

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Solution

The fourth proportional to 66,364.77, 99,561.72 and 48,781.29 is: 73,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.77 : 99,561.72 = 48,781.29 : x
  2. Step 2: Convert to fraction form
    66,364.77/99,561.72 = 48,781.29/x
  3. Step 3: Cross multiply
    66,364.77x = 99,561.72 × 48,781.29
  4. Step 4: Simplify right side
    66,364.77x = 4,856,749,132.47
  5. Step 5: Solve for x
    x = 4,856,749,132.47/66,364.77
  6. Step 6: Final answer
    x = 73,182.64

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1.5x scale

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.