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Finding the Fourth Proportional to 64,525.54, 89,054.89 and 39,389.62

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Solution

The fourth proportional to 64,525.54, 89,054.89 and 39,389.62 is: 54,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,525.54 : 89,054.89 = 39,389.62 : x
  2. Step 2: Convert to fraction form
    64,525.54/89,054.89 = 39,389.62/x
  3. Step 3: Cross multiply
    64,525.54x = 89,054.89 × 39,389.62
  4. Step 4: Simplify right side
    64,525.54x = 3,507,838,276.24
  5. Step 5: Solve for x
    x = 3,507,838,276.24/64,525.54
  6. Step 6: Final answer
    x = 54,363.56

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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.