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Finding the Fourth Proportional to 36,700.70, 55,051.05 and 28,406.30

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Solution

The fourth proportional to 36,700.70, 55,051.05 and 28,406.30 is: 42,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.70 : 55,051.05 = 28,406.30 : x
  2. Step 2: Convert to fraction form
    36,700.70/55,051.05 = 28,406.30/x
  3. Step 3: Cross multiply
    36,700.70x = 55,051.05 × 28,406.30
  4. Step 4: Simplify right side
    36,700.70x = 1,563,796,641.62
  5. Step 5: Solve for x
    x = 1,563,796,641.62/36,700.70
  6. Step 6: Final answer
    x = 42,609.45

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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.