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Finding the Fourth Proportional to 68,553.60, 102,715.20 and 33,417.60

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Solution

The fourth proportional to 68,553.60, 102,715.20 and 33,417.60 is: 50,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,553.60 : 102,715.20 = 33,417.60 : x
  2. Step 2: Convert to fraction form
    68,553.60/102,715.20 = 33,417.60/x
  3. Step 3: Cross multiply
    68,553.60x = 102,715.20 × 33,417.60
  4. Step 4: Simplify right side
    68,553.60x = 3,432,495,467.52
  5. Step 5: Solve for x
    x = 3,432,495,467.52/68,553.60
  6. Step 6: Final answer
    x = 50,070.24

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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.