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Finding the Fourth Proportional to 8,848.10, 12,210.48 and 5,071.20

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Solution

The fourth proportional to 8,848.10, 12,210.48 and 5,071.20 is: 6,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,848.10 : 12,210.48 = 5,071.20 : x
  2. Step 2: Convert to fraction form
    8,848.10/12,210.48 = 5,071.20/x
  3. Step 3: Cross multiply
    8,848.10x = 12,210.48 × 5,071.20
  4. Step 4: Simplify right side
    8,848.10x = 61,921,786.18
  5. Step 5: Solve for x
    x = 61,921,786.18/8,848.10
  6. Step 6: Final answer
    x = 6,998.31

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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.