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Finding the Fourth Proportional to 55,875.88, 77,100.36 and 33,215.32

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Solution

The fourth proportional to 55,875.88, 77,100.36 and 33,215.32 is: 45,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,875.88 : 77,100.36 = 33,215.32 : x
  2. Step 2: Convert to fraction form
    55,875.88/77,100.36 = 33,215.32/x
  3. Step 3: Cross multiply
    55,875.88x = 77,100.36 × 33,215.32
  4. Step 4: Simplify right side
    55,875.88x = 2,560,913,129.52
  5. Step 5: Solve for x
    x = 2,560,913,129.52/55,875.88
  6. Step 6: Final answer
    x = 45,832.18

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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.