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Finding the Fourth Proportional to 38,594.66, 57,890.90 and 12,300.98

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Solution

The fourth proportional to 38,594.66, 57,890.90 and 12,300.98 is: 18,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,594.66 : 57,890.90 = 12,300.98 : x
  2. Step 2: Convert to fraction form
    38,594.66/57,890.90 = 12,300.98/x
  3. Step 3: Cross multiply
    38,594.66x = 57,890.90 × 12,300.98
  4. Step 4: Simplify right side
    38,594.66x = 712,114,544.38
  5. Step 5: Solve for x
    x = 712,114,544.38/38,594.66
  6. Step 6: Final answer
    x = 18,451.12

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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.