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Finding the Fourth Proportional to 32,890.50, 49,358.43 and 28,503.54

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Solution

The fourth proportional to 32,890.50, 49,358.43 and 28,503.54 is: 42,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,890.50 : 49,358.43 = 28,503.54 : x
  2. Step 2: Convert to fraction form
    32,890.50/49,358.43 = 28,503.54/x
  3. Step 3: Cross multiply
    32,890.50x = 49,358.43 × 28,503.54
  4. Step 4: Simplify right side
    32,890.50x = 1,406,889,983.84
  5. Step 5: Solve for x
    x = 1,406,889,983.84/32,890.50
  6. Step 6: Final answer
    x = 42,774.96

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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.