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Finding the Fourth Proportional to 53,225.40, 79,902.90 and 26,916.60

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Solution

The fourth proportional to 53,225.40, 79,902.90 and 26,916.60 is: 40,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,225.40 : 79,902.90 = 26,916.60 : x
  2. Step 2: Convert to fraction form
    53,225.40/79,902.90 = 26,916.60/x
  3. Step 3: Cross multiply
    53,225.40x = 79,902.90 × 26,916.60
  4. Step 4: Simplify right side
    53,225.40x = 2,150,714,398.14
  5. Step 5: Solve for x
    x = 2,150,714,398.14/53,225.40
  6. Step 6: Final answer
    x = 40,407.67

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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.