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Finding the Fourth Proportional to 85,590.56, 128,376.12 and 23,246.48

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Solution

The fourth proportional to 85,590.56, 128,376.12 and 23,246.48 is: 34,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590.56 : 128,376.12 = 23,246.48 : x
  2. Step 2: Convert to fraction form
    85,590.56/128,376.12 = 23,246.48/x
  3. Step 3: Cross multiply
    85,590.56x = 128,376.12 × 23,246.48
  4. Step 4: Simplify right side
    85,590.56x = 2,984,292,906.06
  5. Step 5: Solve for x
    x = 2,984,292,906.06/85,590.56
  6. Step 6: Final answer
    x = 34,867.08

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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.