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Finding the Fourth Proportional to 54,313.60, 81,405.60 and 48,740.80

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Solution

The fourth proportional to 54,313.60, 81,405.60 and 48,740.80 is: 73,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,313.60 : 81,405.60 = 48,740.80 : x
  2. Step 2: Convert to fraction form
    54,313.60/81,405.60 = 48,740.80/x
  3. Step 3: Cross multiply
    54,313.60x = 81,405.60 × 48,740.80
  4. Step 4: Simplify right side
    54,313.60x = 3,967,774,068.48
  5. Step 5: Solve for x
    x = 3,967,774,068.48/54,313.60
  6. Step 6: Final answer
    x = 73,053.05

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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.