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Finding the Fourth Proportional to 56,718.70, 85,110.45 and 39,201.10

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Solution

The fourth proportional to 56,718.70, 85,110.45 and 39,201.10 is: 58,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,718.70 : 85,110.45 = 39,201.10 : x
  2. Step 2: Convert to fraction form
    56,718.70/85,110.45 = 39,201.10/x
  3. Step 3: Cross multiply
    56,718.70x = 85,110.45 × 39,201.10
  4. Step 4: Simplify right side
    56,718.70x = 3,336,423,261.50
  5. Step 5: Solve for x
    x = 3,336,423,261.50/56,718.70
  6. Step 6: Final answer
    x = 58,824.04

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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.