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Finding the Fourth Proportional to 20,492.60, 30,713.22 and 10,626.20

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Solution

The fourth proportional to 20,492.60, 30,713.22 and 10,626.20 is: 15,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492.60 : 30,713.22 = 10,626.20 : x
  2. Step 2: Convert to fraction form
    20,492.60/30,713.22 = 10,626.20/x
  3. Step 3: Cross multiply
    20,492.60x = 30,713.22 × 10,626.20
  4. Step 4: Simplify right side
    20,492.60x = 326,364,818.36
  5. Step 5: Solve for x
    x = 326,364,818.36/20,492.60
  6. Step 6: Final answer
    x = 15,925.98

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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.