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Finding the Fourth Proportional to 9,763.40, 14,628.90 and 8,370.20

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Solution

The fourth proportional to 9,763.40, 14,628.90 and 8,370.20 is: 12,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.40 : 14,628.90 = 8,370.20 : x
  2. Step 2: Convert to fraction form
    9,763.40/14,628.90 = 8,370.20/x
  3. Step 3: Cross multiply
    9,763.40x = 14,628.90 × 8,370.20
  4. Step 4: Simplify right side
    9,763.40x = 122,446,818.78
  5. Step 5: Solve for x
    x = 122,446,818.78/9,763.40
  6. Step 6: Final answer
    x = 12,541.41

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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.