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Finding the Fourth Proportional to 32,486.09, 48,709.08 and 12,755.70

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Solution

The fourth proportional to 32,486.09, 48,709.08 and 12,755.70 is: 19,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,486.09 : 48,709.08 = 12,755.70 : x
  2. Step 2: Convert to fraction form
    32,486.09/48,709.08 = 12,755.70/x
  3. Step 3: Cross multiply
    32,486.09x = 48,709.08 × 12,755.70
  4. Step 4: Simplify right side
    32,486.09x = 621,318,411.76
  5. Step 5: Solve for x
    x = 621,318,411.76/32,486.09
  6. Step 6: Final answer
    x = 19,125.68

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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.