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Finding the Fourth Proportional to 64,692.42, 89,275.57 and 36,398.11

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Solution

The fourth proportional to 64,692.42, 89,275.57 and 36,398.11 is: 50,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.42 : 89,275.57 = 36,398.11 : x
  2. Step 2: Convert to fraction form
    64,692.42/89,275.57 = 36,398.11/x
  3. Step 3: Cross multiply
    64,692.42x = 89,275.57 × 36,398.11
  4. Step 4: Simplify right side
    64,692.42x = 3,249,461,870.38
  5. Step 5: Solve for x
    x = 3,249,461,870.38/64,692.42
  6. Step 6: Final answer
    x = 50,229.41

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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.