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Finding the Fourth Proportional to 19,157.85, 28,736.84 and 5,830.99

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Solution

The fourth proportional to 19,157.85, 28,736.84 and 5,830.99 is: 8,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.85 : 28,736.84 = 5,830.99 : x
  2. Step 2: Convert to fraction form
    19,157.85/28,736.84 = 5,830.99/x
  3. Step 3: Cross multiply
    19,157.85x = 28,736.84 × 5,830.99
  4. Step 4: Simplify right side
    19,157.85x = 167,564,169.41
  5. Step 5: Solve for x
    x = 167,564,169.41/19,157.85
  6. Step 6: Final answer
    x = 8,746.50

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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.