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Finding the Fourth Proportional to 21,602.44, 32,391.44 and 8,945.04

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Solution

The fourth proportional to 21,602.44, 32,391.44 and 8,945.04 is: 13,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.44 : 32,391.44 = 8,945.04 : x
  2. Step 2: Convert to fraction form
    21,602.44/32,391.44 = 8,945.04/x
  3. Step 3: Cross multiply
    21,602.44x = 32,391.44 × 8,945.04
  4. Step 4: Simplify right side
    21,602.44x = 289,742,726.46
  5. Step 5: Solve for x
    x = 289,742,726.46/21,602.44
  6. Step 6: Final answer
    x = 13,412.50

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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.