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Finding the Fourth Proportional to 8,370.79, 12,562.28 and 6,746.95

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Solution

The fourth proportional to 8,370.79, 12,562.28 and 6,746.95 is: 10,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.79 : 12,562.28 = 6,746.95 : x
  2. Step 2: Convert to fraction form
    8,370.79/12,562.28 = 6,746.95/x
  3. Step 3: Cross multiply
    8,370.79x = 12,562.28 × 6,746.95
  4. Step 4: Simplify right side
    8,370.79x = 84,757,075.05
  5. Step 5: Solve for x
    x = 84,757,075.05/8,370.79
  6. Step 6: Final answer
    x = 10,125.34

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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.