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Finding the Fourth Proportional to 7,880.39, 10,875.01 and 4,343.73

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Solution

The fourth proportional to 7,880.39, 10,875.01 and 4,343.73 is: 5,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.39 : 10,875.01 = 4,343.73 : x
  2. Step 2: Convert to fraction form
    7,880.39/10,875.01 = 4,343.73/x
  3. Step 3: Cross multiply
    7,880.39x = 10,875.01 × 4,343.73
  4. Step 4: Simplify right side
    7,880.39x = 47,238,063.69
  5. Step 5: Solve for x
    x = 47,238,063.69/7,880.39
  6. Step 6: Final answer
    x = 5,994.38

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Half scale
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Double scale
Find fourth proportional to 7,881.39, 10,876.39 and 4,344.73
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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.