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Finding the Fourth Proportional to 27,307.99, 37,684.42 and 15,208.39

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Solution

The fourth proportional to 27,307.99, 37,684.42 and 15,208.39 is: 20,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,307.99 : 37,684.42 = 15,208.39 : x
  2. Step 2: Convert to fraction form
    27,307.99/37,684.42 = 15,208.39/x
  3. Step 3: Cross multiply
    27,307.99x = 37,684.42 × 15,208.39
  4. Step 4: Simplify right side
    27,307.99x = 573,119,356.28
  5. Step 5: Solve for x
    x = 573,119,356.28/27,307.99
  6. Step 6: Final answer
    x = 20,987.24

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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.