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Finding the Fourth Proportional to 71,188.01, 106,783.05 and 18,597.50

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Solution

The fourth proportional to 71,188.01, 106,783.05 and 18,597.50 is: 27,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.01 : 106,783.05 = 18,597.50 : x
  2. Step 2: Convert to fraction form
    71,188.01/106,783.05 = 18,597.50/x
  3. Step 3: Cross multiply
    71,188.01x = 106,783.05 × 18,597.50
  4. Step 4: Simplify right side
    71,188.01x = 1,985,897,772.38
  5. Step 5: Solve for x
    x = 1,985,897,772.38/71,188.01
  6. Step 6: Final answer
    x = 27,896.52

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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.