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Finding the Fourth Proportional to 85,220.70, 127,830.48 and 26,056.14

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Solution

The fourth proportional to 85,220.70, 127,830.48 and 26,056.14 is: 39,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.70 : 127,830.48 = 26,056.14 : x
  2. Step 2: Convert to fraction form
    85,220.70/127,830.48 = 26,056.14/x
  3. Step 3: Cross multiply
    85,220.70x = 127,830.48 × 26,056.14
  4. Step 4: Simplify right side
    85,220.70x = 3,330,768,883.15
  5. Step 5: Solve for x
    x = 3,330,768,883.15/85,220.70
  6. Step 6: Final answer
    x = 39,084.04

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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.