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Finding the Fourth Proportional to 15,157.80, 22,721.94 and 7,258.26

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Solution

The fourth proportional to 15,157.80, 22,721.94 and 7,258.26 is: 10,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.80 : 22,721.94 = 7,258.26 : x
  2. Step 2: Convert to fraction form
    15,157.80/22,721.94 = 7,258.26/x
  3. Step 3: Cross multiply
    15,157.80x = 22,721.94 × 7,258.26
  4. Step 4: Simplify right side
    15,157.80x = 164,921,748.22
  5. Step 5: Solve for x
    x = 164,921,748.22/15,157.80
  6. Step 6: Final answer
    x = 10,880.32

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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.