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Finding the Fourth Proportional to 21,888.86, 32,829.83 and 7,094.32

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Solution

The fourth proportional to 21,888.86, 32,829.83 and 7,094.32 is: 10,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888.86 : 32,829.83 = 7,094.32 : x
  2. Step 2: Convert to fraction form
    21,888.86/32,829.83 = 7,094.32/x
  3. Step 3: Cross multiply
    21,888.86x = 32,829.83 × 7,094.32
  4. Step 4: Simplify right side
    21,888.86x = 232,905,219.76
  5. Step 5: Solve for x
    x = 232,905,219.76/21,888.86
  6. Step 6: Final answer
    x = 10,640.36

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1.5x scale

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.