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Finding the Fourth Proportional to 64,953.50, 89,650.80 and 38,104.63

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Solution

The fourth proportional to 64,953.50, 89,650.80 and 38,104.63 is: 52,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,953.50 : 89,650.80 = 38,104.63 : x
  2. Step 2: Convert to fraction form
    64,953.50/89,650.80 = 38,104.63/x
  3. Step 3: Cross multiply
    64,953.50x = 89,650.80 × 38,104.63
  4. Step 4: Simplify right side
    64,953.50x = 3,416,110,339.08
  5. Step 5: Solve for x
    x = 3,416,110,339.08/64,953.50
  6. Step 6: Final answer
    x = 52,593.17

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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.