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Finding the Fourth Proportional to 72,692.20, 109,038.30 and 62,324.20

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Solution

The fourth proportional to 72,692.20, 109,038.30 and 62,324.20 is: 93,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692.20 : 109,038.30 = 62,324.20 : x
  2. Step 2: Convert to fraction form
    72,692.20/109,038.30 = 62,324.20/x
  3. Step 3: Cross multiply
    72,692.20x = 109,038.30 × 62,324.20
  4. Step 4: Simplify right side
    72,692.20x = 6,795,724,816.86
  5. Step 5: Solve for x
    x = 6,795,724,816.86/72,692.20
  6. Step 6: Final answer
    x = 93,486.30

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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.