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Finding the Fourth Proportional to 60,461.40, 90,692.46 and 18,908.40

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Solution

The fourth proportional to 60,461.40, 90,692.46 and 18,908.40 is: 28,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,461.40 : 90,692.46 = 18,908.40 : x
  2. Step 2: Convert to fraction form
    60,461.40/90,692.46 = 18,908.40/x
  3. Step 3: Cross multiply
    60,461.40x = 90,692.46 × 18,908.40
  4. Step 4: Simplify right side
    60,461.40x = 1,714,849,310.66
  5. Step 5: Solve for x
    x = 1,714,849,310.66/60,461.40
  6. Step 6: Final answer
    x = 28,362.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.