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Finding the Fourth Proportional to 8,926.33, 12,318 and 4,947.51

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Solution

The fourth proportional to 8,926.33, 12,318 and 4,947.51 is: 6,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.33 : 12,318 = 4,947.51 : x
  2. Step 2: Convert to fraction form
    8,926.33/12,318 = 4,947.51/x
  3. Step 3: Cross multiply
    8,926.33x = 12,318 × 4,947.51
  4. Step 4: Simplify right side
    8,926.33x = 60,943,428.18
  5. Step 5: Solve for x
    x = 60,943,428.18/8,926.33
  6. Step 6: Final answer
    x = 6,827.38

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Half scale
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Double 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.