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Finding the Fourth Proportional to 65,951.20, 98,999.70 and 41,019.40

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Solution

The fourth proportional to 65,951.20, 98,999.70 and 41,019.40 is: 61,574.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,951.20 : 98,999.70 = 41,019.40 : x
  2. Step 2: Convert to fraction form
    65,951.20/98,999.70 = 41,019.40/x
  3. Step 3: Cross multiply
    65,951.20x = 98,999.70 × 41,019.40
  4. Step 4: Simplify right side
    65,951.20x = 4,060,908,294.18
  5. Step 5: Solve for x
    x = 4,060,908,294.18/65,951.20
  6. Step 6: Final answer
    x = 61,574.44

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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.