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Finding the Fourth Proportional to 57,878.88, 79,883.09 and 34,005.55

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Solution

The fourth proportional to 57,878.88, 79,883.09 and 34,005.55 is: 46,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.88 : 79,883.09 = 34,005.55 : x
  2. Step 2: Convert to fraction form
    57,878.88/79,883.09 = 34,005.55/x
  3. Step 3: Cross multiply
    57,878.88x = 79,883.09 × 34,005.55
  4. Step 4: Simplify right side
    57,878.88x = 2,716,467,841.71
  5. Step 5: Solve for x
    x = 2,716,467,841.71/57,878.88
  6. Step 6: Final answer
    x = 46,933.67

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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.