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Finding the Fourth Proportional to 28,597.83, 39,468.87 and 16,664.91

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Solution

The fourth proportional to 28,597.83, 39,468.87 and 16,664.91 is: 22,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.83 : 39,468.87 = 16,664.91 : x
  2. Step 2: Convert to fraction form
    28,597.83/39,468.87 = 16,664.91/x
  3. Step 3: Cross multiply
    28,597.83x = 39,468.87 × 16,664.91
  4. Step 4: Simplify right side
    28,597.83x = 657,745,166.35
  5. Step 5: Solve for x
    x = 657,745,166.35/28,597.83
  6. Step 6: Final answer
    x = 22,999.83

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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.