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Finding the Fourth Proportional to 32,856.80, 49,285.20 and 15,328.40

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Solution

The fourth proportional to 32,856.80, 49,285.20 and 15,328.40 is: 22,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,856.80 : 49,285.20 = 15,328.40 : x
  2. Step 2: Convert to fraction form
    32,856.80/49,285.20 = 15,328.40/x
  3. Step 3: Cross multiply
    32,856.80x = 49,285.20 × 15,328.40
  4. Step 4: Simplify right side
    32,856.80x = 755,463,259.68
  5. Step 5: Solve for x
    x = 755,463,259.68/32,856.80
  6. Step 6: Final answer
    x = 22,992.60

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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.