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Finding the Fourth Proportional to 8,410.77, 12,673.13 and 6,981.93

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Solution

The fourth proportional to 8,410.77, 12,673.13 and 6,981.93 is: 10,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.77 : 12,673.13 = 6,981.93 : x
  2. Step 2: Convert to fraction form
    8,410.77/12,673.13 = 6,981.93/x
  3. Step 3: Cross multiply
    8,410.77x = 12,673.13 × 6,981.93
  4. Step 4: Simplify right side
    8,410.77x = 88,482,871.63
  5. Step 5: Solve for x
    x = 88,482,871.63/8,410.77
  6. Step 6: Final answer
    x = 10,520.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.