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Finding the Fourth Proportional to 15,077.21, 22,621.95 and 5,223.42

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Solution

The fourth proportional to 15,077.21, 22,621.95 and 5,223.42 is: 7,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.21 : 22,621.95 = 5,223.42 : x
  2. Step 2: Convert to fraction form
    15,077.21/22,621.95 = 5,223.42/x
  3. Step 3: Cross multiply
    15,077.21x = 22,621.95 × 5,223.42
  4. Step 4: Simplify right side
    15,077.21x = 118,163,946.07
  5. Step 5: Solve for x
    x = 118,163,946.07/15,077.21
  6. Step 6: Final answer
    x = 7,837.26

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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.