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Finding the Fourth Proportional to 64,818.39, 89,449.38 and 35,010.39

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Solution

The fourth proportional to 64,818.39, 89,449.38 and 35,010.39 is: 48,314.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,818.39 : 89,449.38 = 35,010.39 : x
  2. Step 2: Convert to fraction form
    64,818.39/89,449.38 = 35,010.39/x
  3. Step 3: Cross multiply
    64,818.39x = 89,449.38 × 35,010.39
  4. Step 4: Simplify right side
    64,818.39x = 3,131,657,679.06
  5. Step 5: Solve for x
    x = 3,131,657,679.06/64,818.39
  6. Step 6: Final answer
    x = 48,314.34

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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.