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Finding the Fourth Proportional to 35,385.86, 48,831.48 and 19,470.32

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Solution

The fourth proportional to 35,385.86, 48,831.48 and 19,470.32 is: 26,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,385.86 : 48,831.48 = 19,470.32 : x
  2. Step 2: Convert to fraction form
    35,385.86/48,831.48 = 19,470.32/x
  3. Step 3: Cross multiply
    35,385.86x = 48,831.48 × 19,470.32
  4. Step 4: Simplify right side
    35,385.86x = 950,764,541.67
  5. Step 5: Solve for x
    x = 950,764,541.67/35,385.86
  6. Step 6: Final answer
    x = 26,868.49

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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.