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Finding the Fourth Proportional to 83,745.90, 125,582.40 and 27,564.30

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Solution

The fourth proportional to 83,745.90, 125,582.40 and 27,564.30 is: 41,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,745.90 : 125,582.40 = 27,564.30 : x
  2. Step 2: Convert to fraction form
    83,745.90/125,582.40 = 27,564.30/x
  3. Step 3: Cross multiply
    83,745.90x = 125,582.40 × 27,564.30
  4. Step 4: Simplify right side
    83,745.90x = 3,461,590,948.32
  5. Step 5: Solve for x
    x = 3,461,590,948.32/83,745.90
  6. Step 6: Final answer
    x = 41,334.45

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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.