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Finding the Fourth Proportional to 57,812.40, 86,718.60 and 16,259.40

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Solution

The fourth proportional to 57,812.40, 86,718.60 and 16,259.40 is: 24,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,812.40 : 86,718.60 = 16,259.40 : x
  2. Step 2: Convert to fraction form
    57,812.40/86,718.60 = 16,259.40/x
  3. Step 3: Cross multiply
    57,812.40x = 86,718.60 × 16,259.40
  4. Step 4: Simplify right side
    57,812.40x = 1,409,992,404.84
  5. Step 5: Solve for x
    x = 1,409,992,404.84/57,812.40
  6. Step 6: Final answer
    x = 24,389.10

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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.