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Finding the Fourth Proportional to 64,951.74, 89,646.75 and 38,108.34

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Solution

The fourth proportional to 64,951.74, 89,646.75 and 38,108.34 is: 52,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.74 : 89,646.75 = 38,108.34 : x
  2. Step 2: Convert to fraction form
    64,951.74/89,646.75 = 38,108.34/x
  3. Step 3: Cross multiply
    64,951.74x = 89,646.75 × 38,108.34
  4. Step 4: Simplify right side
    64,951.74x = 3,416,288,828.90
  5. Step 5: Solve for x
    x = 3,416,288,828.90/64,951.74
  6. Step 6: Final answer
    x = 52,597.34

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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.