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Finding the Fourth Proportional to 52,878.01, 72,971.78 and 29,004.78

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Solution

The fourth proportional to 52,878.01, 72,971.78 and 29,004.78 is: 40,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,878.01 : 72,971.78 = 29,004.78 : x
  2. Step 2: Convert to fraction form
    52,878.01/72,971.78 = 29,004.78/x
  3. Step 3: Cross multiply
    52,878.01x = 72,971.78 × 29,004.78
  4. Step 4: Simplify right side
    52,878.01x = 2,116,530,425.11
  5. Step 5: Solve for x
    x = 2,116,530,425.11/52,878.01
  6. Step 6: Final answer
    x = 40,026.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.