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Finding the Fourth Proportional to 19,243.48, 28,875.48 and 7,556.80

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Solution

The fourth proportional to 19,243.48, 28,875.48 and 7,556.80 is: 11,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.48 : 28,875.48 = 7,556.80 : x
  2. Step 2: Convert to fraction form
    19,243.48/28,875.48 = 7,556.80/x
  3. Step 3: Cross multiply
    19,243.48x = 28,875.48 × 7,556.80
  4. Step 4: Simplify right side
    19,243.48x = 218,206,227.26
  5. Step 5: Solve for x
    x = 218,206,227.26/19,243.48
  6. Step 6: Final answer
    x = 11,339.23

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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.