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Finding the Fourth Proportional to 64,124.88, 88,503.76 and 38,285.12

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Solution

The fourth proportional to 64,124.88, 88,503.76 and 38,285.12 is: 52,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,124.88 : 88,503.76 = 38,285.12 : x
  2. Step 2: Convert to fraction form
    64,124.88/88,503.76 = 38,285.12/x
  3. Step 3: Cross multiply
    64,124.88x = 88,503.76 × 38,285.12
  4. Step 4: Simplify right side
    64,124.88x = 3,388,377,072.05
  5. Step 5: Solve for x
    x = 3,388,377,072.05/64,124.88
  6. Step 6: Final answer
    x = 52,840.29

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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.