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Finding the Fourth Proportional to 57,968.35, 81,330.65 and 57,968.35

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Solution

The fourth proportional to 57,968.35, 81,330.65 and 57,968.35 is: 81,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,968.35 : 81,330.65 = 57,968.35 : x
  2. Step 2: Convert to fraction form
    57,968.35/81,330.65 = 57,968.35/x
  3. Step 3: Cross multiply
    57,968.35x = 81,330.65 × 57,968.35
  4. Step 4: Simplify right side
    57,968.35x = 4,714,603,584.93
  5. Step 5: Solve for x
    x = 4,714,603,584.93/57,968.35
  6. Step 6: Final answer
    x = 81,330.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.