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Finding the Fourth Proportional to 64,994.32, 89,698.44 and 39,495.07

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Solution

The fourth proportional to 64,994.32, 89,698.44 and 39,495.07 is: 54,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,994.32 : 89,698.44 = 39,495.07 : x
  2. Step 2: Convert to fraction form
    64,994.32/89,698.44 = 39,495.07/x
  3. Step 3: Cross multiply
    64,994.32x = 89,698.44 × 39,495.07
  4. Step 4: Simplify right side
    64,994.32x = 3,542,646,166.69
  5. Step 5: Solve for x
    x = 3,542,646,166.69/64,994.32
  6. Step 6: Final answer
    x = 54,507.01

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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.