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Finding the Fourth Proportional to 18,692.96, 28,032.48 and 6,210.68

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Solution

The fourth proportional to 18,692.96, 28,032.48 and 6,210.68 is: 9,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.96 : 28,032.48 = 6,210.68 : x
  2. Step 2: Convert to fraction form
    18,692.96/28,032.48 = 6,210.68/x
  3. Step 3: Cross multiply
    18,692.96x = 28,032.48 × 6,210.68
  4. Step 4: Simplify right side
    18,692.96x = 174,100,762.89
  5. Step 5: Solve for x
    x = 174,100,762.89/18,692.96
  6. Step 6: Final answer
    x = 9,313.71

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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.