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Finding the Fourth Proportional to 7,894.88, 10,894.79 and 4,358.01

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Solution

The fourth proportional to 7,894.88, 10,894.79 and 4,358.01 is: 6,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.88 : 10,894.79 = 4,358.01 : x
  2. Step 2: Convert to fraction form
    7,894.88/10,894.79 = 4,358.01/x
  3. Step 3: Cross multiply
    7,894.88x = 10,894.79 × 4,358.01
  4. Step 4: Simplify right side
    7,894.88x = 47,479,581.98
  5. Step 5: Solve for x
    x = 47,479,581.98/7,894.88
  6. Step 6: Final answer
    x = 6,013.98

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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.