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Finding the Fourth Proportional to 63,407.52, 87,505.01 and 35,113.20

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Solution

The fourth proportional to 63,407.52, 87,505.01 and 35,113.20 is: 48,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,407.52 : 87,505.01 = 35,113.20 : x
  2. Step 2: Convert to fraction form
    63,407.52/87,505.01 = 35,113.20/x
  3. Step 3: Cross multiply
    63,407.52x = 87,505.01 × 35,113.20
  4. Step 4: Simplify right side
    63,407.52x = 3,072,580,917.13
  5. Step 5: Solve for x
    x = 3,072,580,917.13/63,407.52
  6. Step 6: Final answer
    x = 48,457.67

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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.