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Finding the Fourth Proportional to 57,862.30, 86,800.20 and 18,423.40

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Solution

The fourth proportional to 57,862.30, 86,800.20 and 18,423.40 is: 27,637.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,862.30 : 86,800.20 = 18,423.40 : x
  2. Step 2: Convert to fraction form
    57,862.30/86,800.20 = 18,423.40/x
  3. Step 3: Cross multiply
    57,862.30x = 86,800.20 × 18,423.40
  4. Step 4: Simplify right side
    57,862.30x = 1,599,154,804.68
  5. Step 5: Solve for x
    x = 1,599,154,804.68/57,862.30
  6. Step 6: Final answer
    x = 27,637.25

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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.