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Finding the Fourth Proportional to 54,635.68, 81,901.68 and 19,557.28

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Solution

The fourth proportional to 54,635.68, 81,901.68 and 19,557.28 is: 29,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,635.68 : 81,901.68 = 19,557.28 : x
  2. Step 2: Convert to fraction form
    54,635.68/81,901.68 = 19,557.28/x
  3. Step 3: Cross multiply
    54,635.68x = 81,901.68 × 19,557.28
  4. Step 4: Simplify right side
    54,635.68x = 1,601,774,088.23
  5. Step 5: Solve for x
    x = 1,601,774,088.23/54,635.68
  6. Step 6: Final answer
    x = 29,317.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.