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Finding the Fourth Proportional to 55,232.60, 82,848.90 and 20,173.40

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Solution

The fourth proportional to 55,232.60, 82,848.90 and 20,173.40 is: 30,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,232.60 : 82,848.90 = 20,173.40 : x
  2. Step 2: Convert to fraction form
    55,232.60/82,848.90 = 20,173.40/x
  3. Step 3: Cross multiply
    55,232.60x = 82,848.90 × 20,173.40
  4. Step 4: Simplify right side
    55,232.60x = 1,671,343,999.26
  5. Step 5: Solve for x
    x = 1,671,343,999.26/55,232.60
  6. Step 6: Final answer
    x = 30,260.10

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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.