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Finding the Fourth Proportional to 64,854.95, 89,499.97 and 36,173.89

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Solution

The fourth proportional to 64,854.95, 89,499.97 and 36,173.89 is: 49,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.95 : 89,499.97 = 36,173.89 : x
  2. Step 2: Convert to fraction form
    64,854.95/89,499.97 = 36,173.89/x
  3. Step 3: Cross multiply
    64,854.95x = 89,499.97 × 36,173.89
  4. Step 4: Simplify right side
    64,854.95x = 3,237,562,226.88
  5. Step 5: Solve for x
    x = 3,237,562,226.88/64,854.95
  6. Step 6: Final answer
    x = 49,920.05

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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.