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Finding the Fourth Proportional to 8,760.83, 12,089.93 and 4,781.93

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Solution

The fourth proportional to 8,760.83, 12,089.93 and 4,781.93 is: 6,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.83 : 12,089.93 = 4,781.93 : x
  2. Step 2: Convert to fraction form
    8,760.83/12,089.93 = 4,781.93/x
  3. Step 3: Cross multiply
    8,760.83x = 12,089.93 × 4,781.93
  4. Step 4: Simplify right side
    8,760.83x = 57,813,114.61
  5. Step 5: Solve for x
    x = 57,813,114.61/8,760.83
  6. Step 6: Final answer
    x = 6,599.05

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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.