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Finding the Fourth Proportional to 35,439.52, 53,112.88 and 17,899.84

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Solution

The fourth proportional to 35,439.52, 53,112.88 and 17,899.84 is: 26,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,439.52 : 53,112.88 = 17,899.84 : x
  2. Step 2: Convert to fraction form
    35,439.52/53,112.88 = 17,899.84/x
  3. Step 3: Cross multiply
    35,439.52x = 53,112.88 × 17,899.84
  4. Step 4: Simplify right side
    35,439.52x = 950,712,053.94
  5. Step 5: Solve for x
    x = 950,712,053.94/35,439.52
  6. Step 6: Final answer
    x = 26,826.32

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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.