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Finding the Fourth Proportional to 7,848.84, 10,818.39 and 7,641.08

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Solution

The fourth proportional to 7,848.84, 10,818.39 and 7,641.08 is: 10,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.84 : 10,818.39 = 7,641.08 : x
  2. Step 2: Convert to fraction form
    7,848.84/10,818.39 = 7,641.08/x
  3. Step 3: Cross multiply
    7,848.84x = 10,818.39 × 7,641.08
  4. Step 4: Simplify right side
    7,848.84x = 82,664,183.46
  5. Step 5: Solve for x
    x = 82,664,183.46/7,848.84
  6. Step 6: Final answer
    x = 10,532.03

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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.