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Finding the Fourth Proportional to 78,007.70, 117,035.06 and 33,005.93

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Solution

The fourth proportional to 78,007.70, 117,035.06 and 33,005.93 is: 49,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,007.70 : 117,035.06 = 33,005.93 : x
  2. Step 2: Convert to fraction form
    78,007.70/117,035.06 = 33,005.93/x
  3. Step 3: Cross multiply
    78,007.70x = 117,035.06 × 33,005.93
  4. Step 4: Simplify right side
    78,007.70x = 3,862,850,247.70
  5. Step 5: Solve for x
    x = 3,862,850,247.70/78,007.70
  6. Step 6: Final answer
    x = 49,518.84

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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.