Home / 34,782.66-47,984.13-20,630.34

Finding the Fourth Proportional to 34,782.66, 47,984.13 and 20,630.34

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Solution

The fourth proportional to 34,782.66, 47,984.13 and 20,630.34 is: 28,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,782.66 : 47,984.13 = 20,630.34 : x
  2. Step 2: Convert to fraction form
    34,782.66/47,984.13 = 20,630.34/x
  3. Step 3: Cross multiply
    34,782.66x = 47,984.13 × 20,630.34
  4. Step 4: Simplify right side
    34,782.66x = 989,928,916.50
  5. Step 5: Solve for x
    x = 989,928,916.50/34,782.66
  6. Step 6: Final answer
    x = 28,460.41

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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.