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Finding the Fourth Proportional to 15,961.02, 22,023 and 9,669.75

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Solution

The fourth proportional to 15,961.02, 22,023 and 9,669.75 is: 13,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.02 : 22,023 = 9,669.75 : x
  2. Step 2: Convert to fraction form
    15,961.02/22,023 = 9,669.75/x
  3. Step 3: Cross multiply
    15,961.02x = 22,023 × 9,669.75
  4. Step 4: Simplify right side
    15,961.02x = 212,956,904.25
  5. Step 5: Solve for x
    x = 212,956,904.25/15,961.02
  6. Step 6: Final answer
    x = 13,342.31

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1.5x scale

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.