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Finding the Fourth Proportional to 64,839.51, 89,477.87 and 36,554.31

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Solution

The fourth proportional to 64,839.51, 89,477.87 and 36,554.31 is: 50,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,839.51 : 89,477.87 = 36,554.31 : x
  2. Step 2: Convert to fraction form
    64,839.51/89,477.87 = 36,554.31/x
  3. Step 3: Cross multiply
    64,839.51x = 89,477.87 × 36,554.31
  4. Step 4: Simplify right side
    64,839.51x = 3,270,801,615.35
  5. Step 5: Solve for x
    x = 3,270,801,615.35/64,839.51
  6. Step 6: Final answer
    x = 50,444.58

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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.