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Finding the Fourth Proportional to 21,893.58, 32,840.36 and 7,102.50

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Solution

The fourth proportional to 21,893.58, 32,840.36 and 7,102.50 is: 10,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.58 : 32,840.36 = 7,102.50 : x
  2. Step 2: Convert to fraction form
    21,893.58/32,840.36 = 7,102.50/x
  3. Step 3: Cross multiply
    21,893.58x = 32,840.36 × 7,102.50
  4. Step 4: Simplify right side
    21,893.58x = 233,248,591.03
  5. Step 5: Solve for x
    x = 233,248,591.03/21,893.58
  6. Step 6: Final answer
    x = 10,653.74

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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.