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Finding the Fourth Proportional to 64,937.11, 89,597.99 and 39,442.77

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Solution

The fourth proportional to 64,937.11, 89,597.99 and 39,442.77 is: 54,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,937.11 : 89,597.99 = 39,442.77 : x
  2. Step 2: Convert to fraction form
    64,937.11/89,597.99 = 39,442.77/x
  3. Step 3: Cross multiply
    64,937.11x = 89,597.99 × 39,442.77
  4. Step 4: Simplify right side
    64,937.11x = 3,533,992,266.83
  5. Step 5: Solve for x
    x = 3,533,992,266.83/64,937.11
  6. Step 6: Final answer
    x = 54,421.77

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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.