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Finding the Fourth Proportional to 60,461.80, 90,692.70 and 53,780.20

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Solution

The fourth proportional to 60,461.80, 90,692.70 and 53,780.20 is: 80,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,461.80 : 90,692.70 = 53,780.20 : x
  2. Step 2: Convert to fraction form
    60,461.80/90,692.70 = 53,780.20/x
  3. Step 3: Cross multiply
    60,461.80x = 90,692.70 × 53,780.20
  4. Step 4: Simplify right side
    60,461.80x = 4,877,471,544.54
  5. Step 5: Solve for x
    x = 4,877,471,544.54/60,461.80
  6. Step 6: Final answer
    x = 80,670.30

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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.