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Finding the Fourth Proportional to 14,195.90, 19,590.09 and 7,823.09

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Solution

The fourth proportional to 14,195.90, 19,590.09 and 7,823.09 is: 10,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.90 : 19,590.09 = 7,823.09 : x
  2. Step 2: Convert to fraction form
    14,195.90/19,590.09 = 7,823.09/x
  3. Step 3: Cross multiply
    14,195.90x = 19,590.09 × 7,823.09
  4. Step 4: Simplify right side
    14,195.90x = 153,254,939.23
  5. Step 5: Solve for x
    x = 153,254,939.23/14,195.90
  6. Step 6: Final answer
    x = 10,795.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.