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Finding the Fourth Proportional to 34,364.25, 47,421.90 and 20,023.19

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Solution

The fourth proportional to 34,364.25, 47,421.90 and 20,023.19 is: 27,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,364.25 : 47,421.90 = 20,023.19 : x
  2. Step 2: Convert to fraction form
    34,364.25/47,421.90 = 20,023.19/x
  3. Step 3: Cross multiply
    34,364.25x = 47,421.90 × 20,023.19
  4. Step 4: Simplify right side
    34,364.25x = 949,537,733.50
  5. Step 5: Solve for x
    x = 949,537,733.50/34,364.25
  6. Step 6: Final answer
    x = 27,631.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.