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Finding the Fourth Proportional to 57,848.40, 86,772.60 and 35,686.80

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Solution

The fourth proportional to 57,848.40, 86,772.60 and 35,686.80 is: 53,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,848.40 : 86,772.60 = 35,686.80 : x
  2. Step 2: Convert to fraction form
    57,848.40/86,772.60 = 35,686.80/x
  3. Step 3: Cross multiply
    57,848.40x = 86,772.60 × 35,686.80
  4. Step 4: Simplify right side
    57,848.40x = 3,096,636,421.68
  5. Step 5: Solve for x
    x = 3,096,636,421.68/57,848.40
  6. Step 6: Final answer
    x = 53,530.20

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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.