Home / 19,056.70-28,566.60-8,520.76

Finding the Fourth Proportional to 19,056.70, 28,566.60 and 8,520.76

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Solution

The fourth proportional to 19,056.70, 28,566.60 and 8,520.76 is: 12,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.70 : 28,566.60 = 8,520.76 : x
  2. Step 2: Convert to fraction form
    19,056.70/28,566.60 = 8,520.76/x
  3. Step 3: Cross multiply
    19,056.70x = 28,566.60 × 8,520.76
  4. Step 4: Simplify right side
    19,056.70x = 243,409,142.62
  5. Step 5: Solve for x
    x = 243,409,142.62/19,056.70
  6. Step 6: Final answer
    x = 12,772.89

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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.