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Finding the Fourth Proportional to 77,670.40, 116,505.60 and 22,266.40

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Solution

The fourth proportional to 77,670.40, 116,505.60 and 22,266.40 is: 33,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,670.40 : 116,505.60 = 22,266.40 : x
  2. Step 2: Convert to fraction form
    77,670.40/116,505.60 = 22,266.40/x
  3. Step 3: Cross multiply
    77,670.40x = 116,505.60 × 22,266.40
  4. Step 4: Simplify right side
    77,670.40x = 2,594,160,291.84
  5. Step 5: Solve for x
    x = 2,594,160,291.84/77,670.40
  6. Step 6: Final answer
    x = 33,399.60

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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.