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Finding the Fourth Proportional to 43,992.40, 65,988.60 and 36,702.40

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Solution

The fourth proportional to 43,992.40, 65,988.60 and 36,702.40 is: 55,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,992.40 : 65,988.60 = 36,702.40 : x
  2. Step 2: Convert to fraction form
    43,992.40/65,988.60 = 36,702.40/x
  3. Step 3: Cross multiply
    43,992.40x = 65,988.60 × 36,702.40
  4. Step 4: Simplify right side
    43,992.40x = 2,421,939,992.64
  5. Step 5: Solve for x
    x = 2,421,939,992.64/43,992.40
  6. Step 6: Final answer
    x = 55,053.60

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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.