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Finding the Fourth Proportional to 42,831.50, 64,250.48 and 13,252.32

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Solution

The fourth proportional to 42,831.50, 64,250.48 and 13,252.32 is: 19,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.50 : 64,250.48 = 13,252.32 : x
  2. Step 2: Convert to fraction form
    42,831.50/64,250.48 = 13,252.32/x
  3. Step 3: Cross multiply
    42,831.50x = 64,250.48 × 13,252.32
  4. Step 4: Simplify right side
    42,831.50x = 851,467,954.24
  5. Step 5: Solve for x
    x = 851,467,954.24/42,831.50
  6. Step 6: Final answer
    x = 19,879.48

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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.