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Finding the Fourth Proportional to 7,954.58, 10,972.28 and 5,125.66

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Solution

The fourth proportional to 7,954.58, 10,972.28 and 5,125.66 is: 7,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.58 : 10,972.28 = 5,125.66 : x
  2. Step 2: Convert to fraction form
    7,954.58/10,972.28 = 5,125.66/x
  3. Step 3: Cross multiply
    7,954.58x = 10,972.28 × 5,125.66
  4. Step 4: Simplify right side
    7,954.58x = 56,240,162.09
  5. Step 5: Solve for x
    x = 56,240,162.09/7,954.58
  6. Step 6: Final answer
    x = 7,070.16

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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.