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Finding the Fourth Proportional to 57,501.56, 86,254.78 and 20,065.40

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Solution

The fourth proportional to 57,501.56, 86,254.78 and 20,065.40 is: 30,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,501.56 : 86,254.78 = 20,065.40 : x
  2. Step 2: Convert to fraction form
    57,501.56/86,254.78 = 20,065.40/x
  3. Step 3: Cross multiply
    57,501.56x = 86,254.78 × 20,065.40
  4. Step 4: Simplify right side
    57,501.56x = 1,730,736,662.61
  5. Step 5: Solve for x
    x = 1,730,736,662.61/57,501.56
  6. Step 6: Final answer
    x = 30,098.95

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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.