Home / 26,668.35-39,915.71-19,645.60

Finding the Fourth Proportional to 26,668.35, 39,915.71 and 19,645.60

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Solution

The fourth proportional to 26,668.35, 39,915.71 and 19,645.60 is: 29,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.35 : 39,915.71 = 19,645.60 : x
  2. Step 2: Convert to fraction form
    26,668.35/39,915.71 = 19,645.60/x
  3. Step 3: Cross multiply
    26,668.35x = 39,915.71 × 19,645.60
  4. Step 4: Simplify right side
    26,668.35x = 784,168,072.38
  5. Step 5: Solve for x
    x = 784,168,072.38/26,668.35
  6. Step 6: Final answer
    x = 29,404.45

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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.