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Finding the Fourth Proportional to 8,751.06, 12,076.80 and 4,772.40

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Solution

The fourth proportional to 8,751.06, 12,076.80 and 4,772.40 is: 6,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.06 : 12,076.80 = 4,772.40 : x
  2. Step 2: Convert to fraction form
    8,751.06/12,076.80 = 4,772.40/x
  3. Step 3: Cross multiply
    8,751.06x = 12,076.80 × 4,772.40
  4. Step 4: Simplify right side
    8,751.06x = 57,635,320.32
  5. Step 5: Solve for x
    x = 57,635,320.32/8,751.06
  6. Step 6: Final answer
    x = 6,586.10

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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.