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Finding the Fourth Proportional to 8,759.86, 12,088.58 and 4,781.00

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Solution

The fourth proportional to 8,759.86, 12,088.58 and 4,781.00 is: 6,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.86 : 12,088.58 = 4,781.00 : x
  2. Step 2: Convert to fraction form
    8,759.86/12,088.58 = 4,781.00/x
  3. Step 3: Cross multiply
    8,759.86x = 12,088.58 × 4,781.00
  4. Step 4: Simplify right side
    8,759.86x = 57,795,507.30
  5. Step 5: Solve for x
    x = 57,795,507.30/8,759.86
  6. Step 6: Final answer
    x = 6,597.77

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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.