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Finding the Fourth Proportional to 47,840.86, 71,698.86 and 29,821.63

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Solution

The fourth proportional to 47,840.86, 71,698.86 and 29,821.63 is: 44,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,840.86 : 71,698.86 = 29,821.63 : x
  2. Step 2: Convert to fraction form
    47,840.86/71,698.86 = 29,821.63/x
  3. Step 3: Cross multiply
    47,840.86x = 71,698.86 × 29,821.63
  4. Step 4: Simplify right side
    47,840.86x = 2,138,176,874.34
  5. Step 5: Solve for x
    x = 2,138,176,874.34/47,840.86
  6. Step 6: Final answer
    x = 44,693.53

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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.