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Finding the Fourth Proportional to 15,225.01, 22,816.05 and 7,211.28

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Solution

The fourth proportional to 15,225.01, 22,816.05 and 7,211.28 is: 10,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.01 : 22,816.05 = 7,211.28 : x
  2. Step 2: Convert to fraction form
    15,225.01/22,816.05 = 7,211.28/x
  3. Step 3: Cross multiply
    15,225.01x = 22,816.05 × 7,211.28
  4. Step 4: Simplify right side
    15,225.01x = 164,532,925.04
  5. Step 5: Solve for x
    x = 164,532,925.04/15,225.01
  6. Step 6: Final answer
    x = 10,806.75

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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.