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Finding the Fourth Proportional to 7,703.84, 10,631.05 and 4,872.76

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Solution

The fourth proportional to 7,703.84, 10,631.05 and 4,872.76 is: 6,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.84 : 10,631.05 = 4,872.76 : x
  2. Step 2: Convert to fraction form
    7,703.84/10,631.05 = 4,872.76/x
  3. Step 3: Cross multiply
    7,703.84x = 10,631.05 × 4,872.76
  4. Step 4: Simplify right side
    7,703.84x = 51,802,555.20
  5. Step 5: Solve for x
    x = 51,802,555.20/7,703.84
  6. Step 6: Final answer
    x = 6,724.25

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Half scale
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Double scale
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Similar ratio
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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.