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Finding the Fourth Proportional to 55,703.44, 76,870.08 and 30,552.88

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Solution

The fourth proportional to 55,703.44, 76,870.08 and 30,552.88 is: 42,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,703.44 : 76,870.08 = 30,552.88 : x
  2. Step 2: Convert to fraction form
    55,703.44/76,870.08 = 30,552.88/x
  3. Step 3: Cross multiply
    55,703.44x = 76,870.08 × 30,552.88
  4. Step 4: Simplify right side
    55,703.44x = 2,348,602,329.83
  5. Step 5: Solve for x
    x = 2,348,602,329.83/55,703.44
  6. Step 6: Final answer
    x = 42,162.61

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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.