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Finding the Fourth Proportional to 85,977.95, 128,960.82 and 22,796.67

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Solution

The fourth proportional to 85,977.95, 128,960.82 and 22,796.67 is: 34,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,977.95 : 128,960.82 = 22,796.67 : x
  2. Step 2: Convert to fraction form
    85,977.95/128,960.82 = 22,796.67/x
  3. Step 3: Cross multiply
    85,977.95x = 128,960.82 × 22,796.67
  4. Step 4: Simplify right side
    85,977.95x = 2,939,877,256.47
  5. Step 5: Solve for x
    x = 2,939,877,256.47/85,977.95
  6. Step 6: Final answer
    x = 34,193.39

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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.