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Finding the Fourth Proportional to 64,952.98, 89,625.50 and 39,446.08

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Solution

The fourth proportional to 64,952.98, 89,625.50 and 39,446.08 is: 54,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,952.98 : 89,625.50 = 39,446.08 : x
  2. Step 2: Convert to fraction form
    64,952.98/89,625.50 = 39,446.08/x
  3. Step 3: Cross multiply
    64,952.98x = 89,625.50 × 39,446.08
  4. Step 4: Simplify right side
    64,952.98x = 3,535,374,643.04
  5. Step 5: Solve for x
    x = 3,535,374,643.04/64,952.98
  6. Step 6: Final answer
    x = 54,429.75

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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.