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Finding the Fourth Proportional to 67,572.98, 93,260 and 38,892.06

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Solution

The fourth proportional to 67,572.98, 93,260 and 38,892.06 is: 53,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,572.98 : 93,260 = 38,892.06 : x
  2. Step 2: Convert to fraction form
    67,572.98/93,260 = 38,892.06/x
  3. Step 3: Cross multiply
    67,572.98x = 93,260 × 38,892.06
  4. Step 4: Simplify right side
    67,572.98x = 3,627,073,515.60
  5. Step 5: Solve for x
    x = 3,627,073,515.60/67,572.98
  6. Step 6: Final answer
    x = 53,676.39

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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.