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Finding the Fourth Proportional to 55,111, 76,053 and 29,960.32

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Solution

The fourth proportional to 55,111, 76,053 and 29,960.32 is: 41,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111 : 76,053 = 29,960.32 : x
  2. Step 2: Convert to fraction form
    55,111/76,053 = 29,960.32/x
  3. Step 3: Cross multiply
    55,111x = 76,053 × 29,960.32
  4. Step 4: Simplify right side
    55,111x = 2,278,572,216.96
  5. Step 5: Solve for x
    x = 2,278,572,216.96/55,111
  6. Step 6: Final answer
    x = 41,345.14

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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.