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Finding the Fourth Proportional to 25,146.40, 37,719.60 and 22,381.60

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Solution

The fourth proportional to 25,146.40, 37,719.60 and 22,381.60 is: 33,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,146.40 : 37,719.60 = 22,381.60 : x
  2. Step 2: Convert to fraction form
    25,146.40/37,719.60 = 22,381.60/x
  3. Step 3: Cross multiply
    25,146.40x = 37,719.60 × 22,381.60
  4. Step 4: Simplify right side
    25,146.40x = 844,224,999.36
  5. Step 5: Solve for x
    x = 844,224,999.36/25,146.40
  6. Step 6: Final answer
    x = 33,572.40

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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.