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Finding the Fourth Proportional to 19,779.27, 29,668.90 and 5,928.27

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Solution

The fourth proportional to 19,779.27, 29,668.90 and 5,928.27 is: 8,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.27 : 29,668.90 = 5,928.27 : x
  2. Step 2: Convert to fraction form
    19,779.27/29,668.90 = 5,928.27/x
  3. Step 3: Cross multiply
    19,779.27x = 29,668.90 × 5,928.27
  4. Step 4: Simplify right side
    19,779.27x = 175,885,273.89
  5. Step 5: Solve for x
    x = 175,885,273.89/19,779.27
  6. Step 6: Final answer
    x = 8,892.40

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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.