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Finding the Fourth Proportional to 62,972, 86,893.80 and 36,113.12

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Solution

The fourth proportional to 62,972, 86,893.80 and 36,113.12 is: 49,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,972 : 86,893.80 = 36,113.12 : x
  2. Step 2: Convert to fraction form
    62,972/86,893.80 = 36,113.12/x
  3. Step 3: Cross multiply
    62,972x = 86,893.80 × 36,113.12
  4. Step 4: Simplify right side
    62,972x = 3,138,006,226.66
  5. Step 5: Solve for x
    x = 3,138,006,226.66/62,972
  6. Step 6: Final answer
    x = 49,831.77

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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.