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Finding the Fourth Proportional to 58,117.78, 80,211.72 and 35,461.72

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Solution

The fourth proportional to 58,117.78, 80,211.72 and 35,461.72 is: 48,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,117.78 : 80,211.72 = 35,461.72 : x
  2. Step 2: Convert to fraction form
    58,117.78/80,211.72 = 35,461.72/x
  3. Step 3: Cross multiply
    58,117.78x = 80,211.72 × 35,461.72
  4. Step 4: Simplify right side
    58,117.78x = 2,844,445,555.36
  5. Step 5: Solve for x
    x = 2,844,445,555.36/58,117.78
  6. Step 6: Final answer
    x = 48,942.78

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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.