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Finding the Fourth Proportional to 57,021.88, 85,532.86 and 15,468.88

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Solution

The fourth proportional to 57,021.88, 85,532.86 and 15,468.88 is: 23,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.88 : 85,532.86 = 15,468.88 : x
  2. Step 2: Convert to fraction form
    57,021.88/85,532.86 = 15,468.88/x
  3. Step 3: Cross multiply
    57,021.88x = 85,532.86 × 15,468.88
  4. Step 4: Simplify right side
    57,021.88x = 1,323,097,547.40
  5. Step 5: Solve for x
    x = 1,323,097,547.40/57,021.88
  6. Step 6: Final answer
    x = 23,203.33

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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.