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Finding the Fourth Proportional to 21,888.90, 32,826.06 and 7,094.25

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Solution

The fourth proportional to 21,888.90, 32,826.06 and 7,094.25 is: 10,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888.90 : 32,826.06 = 7,094.25 : x
  2. Step 2: Convert to fraction form
    21,888.90/32,826.06 = 7,094.25/x
  3. Step 3: Cross multiply
    21,888.90x = 32,826.06 × 7,094.25
  4. Step 4: Simplify right side
    21,888.90x = 232,876,276.16
  5. Step 5: Solve for x
    x = 232,876,276.16/21,888.90
  6. Step 6: Final answer
    x = 10,639.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.