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Finding the Fourth Proportional to 64,896.34, 89,597.49 and 49,759.91

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Solution

The fourth proportional to 64,896.34, 89,597.49 and 49,759.91 is: 68,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896.34 : 89,597.49 = 49,759.91 : x
  2. Step 2: Convert to fraction form
    64,896.34/89,597.49 = 49,759.91/x
  3. Step 3: Cross multiply
    64,896.34x = 89,597.49 × 49,759.91
  4. Step 4: Simplify right side
    64,896.34x = 4,458,363,038.63
  5. Step 5: Solve for x
    x = 4,458,363,038.63/64,896.34
  6. Step 6: Final answer
    x = 68,699.76

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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.