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Finding the Fourth Proportional to 84,605.20, 126,907.80 and 32,016.40

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Solution

The fourth proportional to 84,605.20, 126,907.80 and 32,016.40 is: 48,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,605.20 : 126,907.80 = 32,016.40 : x
  2. Step 2: Convert to fraction form
    84,605.20/126,907.80 = 32,016.40/x
  3. Step 3: Cross multiply
    84,605.20x = 126,907.80 × 32,016.40
  4. Step 4: Simplify right side
    84,605.20x = 4,063,130,887.92
  5. Step 5: Solve for x
    x = 4,063,130,887.92/84,605.20
  6. Step 6: Final answer
    x = 48,024.60

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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.