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Finding the Fourth Proportional to 70,139.06, 96,727.79 and 54,827.63

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Solution

The fourth proportional to 70,139.06, 96,727.79 and 54,827.63 is: 75,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,139.06 : 96,727.79 = 54,827.63 : x
  2. Step 2: Convert to fraction form
    70,139.06/96,727.79 = 54,827.63/x
  3. Step 3: Cross multiply
    70,139.06x = 96,727.79 × 54,827.63
  4. Step 4: Simplify right side
    70,139.06x = 5,303,355,134.27
  5. Step 5: Solve for x
    x = 5,303,355,134.27/70,139.06
  6. Step 6: Final answer
    x = 75,612.01

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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.