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Finding the Fourth Proportional to 86,627.60, 119,544.80 and 48,387.68

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Solution

The fourth proportional to 86,627.60, 119,544.80 and 48,387.68 is: 66,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.60 : 119,544.80 = 48,387.68 : x
  2. Step 2: Convert to fraction form
    86,627.60/119,544.80 = 48,387.68/x
  3. Step 3: Cross multiply
    86,627.60x = 119,544.80 × 48,387.68
  4. Step 4: Simplify right side
    86,627.60x = 5,784,494,688.40
  5. Step 5: Solve for x
    x = 5,784,494,688.40/86,627.60
  6. Step 6: Final answer
    x = 66,774.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.