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Finding the Fourth Proportional to 57,059.68, 85,618.68 and 25,890.88

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Solution

The fourth proportional to 57,059.68, 85,618.68 and 25,890.88 is: 38,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,059.68 : 85,618.68 = 25,890.88 : x
  2. Step 2: Convert to fraction form
    57,059.68/85,618.68 = 25,890.88/x
  3. Step 3: Cross multiply
    57,059.68x = 85,618.68 × 25,890.88
  4. Step 4: Simplify right side
    57,059.68x = 2,216,742,969.64
  5. Step 5: Solve for x
    x = 2,216,742,969.64/57,059.68
  6. Step 6: Final answer
    x = 38,849.55

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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.