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Finding the Fourth Proportional to 76,889.58, 115,294.86 and 34,746.83

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Solution

The fourth proportional to 76,889.58, 115,294.86 and 34,746.83 is: 52,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.58 : 115,294.86 = 34,746.83 : x
  2. Step 2: Convert to fraction form
    76,889.58/115,294.86 = 34,746.83/x
  3. Step 3: Cross multiply
    76,889.58x = 115,294.86 × 34,746.83
  4. Step 4: Simplify right side
    76,889.58x = 4,006,130,323.82
  5. Step 5: Solve for x
    x = 4,006,130,323.82/76,889.58
  6. Step 6: Final answer
    x = 52,102.38

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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.