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Finding the Fourth Proportional to 7,670.12, 10,570.02 and 5,458.28

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Solution

The fourth proportional to 7,670.12, 10,570.02 and 5,458.28 is: 7,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.12 : 10,570.02 = 5,458.28 : x
  2. Step 2: Convert to fraction form
    7,670.12/10,570.02 = 5,458.28/x
  3. Step 3: Cross multiply
    7,670.12x = 10,570.02 × 5,458.28
  4. Step 4: Simplify right side
    7,670.12x = 57,694,128.77
  5. Step 5: Solve for x
    x = 57,694,128.77/7,670.12
  6. Step 6: Final answer
    x = 7,521.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.