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Finding the Fourth Proportional to 54,980.60, 82,457.70 and 15,541.40

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Solution

The fourth proportional to 54,980.60, 82,457.70 and 15,541.40 is: 23,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,980.60 : 82,457.70 = 15,541.40 : x
  2. Step 2: Convert to fraction form
    54,980.60/82,457.70 = 15,541.40/x
  3. Step 3: Cross multiply
    54,980.60x = 82,457.70 × 15,541.40
  4. Step 4: Simplify right side
    54,980.60x = 1,281,508,098.78
  5. Step 5: Solve for x
    x = 1,281,508,098.78/54,980.60
  6. Step 6: Final answer
    x = 23,308.37

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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.