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Finding the Fourth Proportional to 57,706.10, 86,550.45 and 18,258.08

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Solution

The fourth proportional to 57,706.10, 86,550.45 and 18,258.08 is: 27,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,706.10 : 86,550.45 = 18,258.08 : x
  2. Step 2: Convert to fraction form
    57,706.10/86,550.45 = 18,258.08/x
  3. Step 3: Cross multiply
    57,706.10x = 86,550.45 × 18,258.08
  4. Step 4: Simplify right side
    57,706.10x = 1,580,244,607.38
  5. Step 5: Solve for x
    x = 1,580,244,607.38/57,706.10
  6. Step 6: Final answer
    x = 27,384.36

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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.