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Finding the Fourth Proportional to 64,692.63, 89,274.91 and 36,398.25

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Solution

The fourth proportional to 64,692.63, 89,274.91 and 36,398.25 is: 50,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.63 : 89,274.91 = 36,398.25 : x
  2. Step 2: Convert to fraction form
    64,692.63/89,274.91 = 36,398.25/x
  3. Step 3: Cross multiply
    64,692.63x = 89,274.91 × 36,398.25
  4. Step 4: Simplify right side
    64,692.63x = 3,249,450,492.91
  5. Step 5: Solve for x
    x = 3,249,450,492.91/64,692.63
  6. Step 6: Final answer
    x = 50,229.07

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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.