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Finding the Fourth Proportional to 23,897.64, 33,036.48 and 21,905.04

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Solution

The fourth proportional to 23,897.64, 33,036.48 and 21,905.04 is: 30,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,897.64 : 33,036.48 = 21,905.04 : x
  2. Step 2: Convert to fraction form
    23,897.64/33,036.48 = 21,905.04/x
  3. Step 3: Cross multiply
    23,897.64x = 33,036.48 × 21,905.04
  4. Step 4: Simplify right side
    23,897.64x = 723,665,415.86
  5. Step 5: Solve for x
    x = 723,665,415.86/23,897.64
  6. Step 6: Final answer
    x = 30,281.88

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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.