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Finding the Fourth Proportional to 8,554.75, 11,805.56 and 4,828.75

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Solution

The fourth proportional to 8,554.75, 11,805.56 and 4,828.75 is: 6,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.75 : 11,805.56 = 4,828.75 : x
  2. Step 2: Convert to fraction form
    8,554.75/11,805.56 = 4,828.75/x
  3. Step 3: Cross multiply
    8,554.75x = 11,805.56 × 4,828.75
  4. Step 4: Simplify right side
    8,554.75x = 57,006,073.71
  5. Step 5: Solve for x
    x = 57,006,073.71/8,554.75
  6. Step 6: Final answer
    x = 6,663.68

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Half scale
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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.