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Finding the Fourth Proportional to 61,608.48, 92,403.12 and 20,055.20

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Solution

The fourth proportional to 61,608.48, 92,403.12 and 20,055.20 is: 30,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,608.48 : 92,403.12 = 20,055.20 : x
  2. Step 2: Convert to fraction form
    61,608.48/92,403.12 = 20,055.20/x
  3. Step 3: Cross multiply
    61,608.48x = 92,403.12 × 20,055.20
  4. Step 4: Simplify right side
    61,608.48x = 1,853,163,052.22
  5. Step 5: Solve for x
    x = 1,853,163,052.22/61,608.48
  6. Step 6: Final answer
    x = 30,079.67

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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.