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Finding the Fourth Proportional to 38,334.60, 57,501.90 and 12,039.30

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Solution

The fourth proportional to 38,334.60, 57,501.90 and 12,039.30 is: 18,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,334.60 : 57,501.90 = 12,039.30 : x
  2. Step 2: Convert to fraction form
    38,334.60/57,501.90 = 12,039.30/x
  3. Step 3: Cross multiply
    38,334.60x = 57,501.90 × 12,039.30
  4. Step 4: Simplify right side
    38,334.60x = 692,282,624.67
  5. Step 5: Solve for x
    x = 692,282,624.67/38,334.60
  6. Step 6: Final answer
    x = 18,058.95

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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.