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Finding the Fourth Proportional to 35,438.80, 53,139.74 and 16,713.80

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Solution

The fourth proportional to 35,438.80, 53,139.74 and 16,713.80 is: 25,062.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,438.80 : 53,139.74 = 16,713.80 : x
  2. Step 2: Convert to fraction form
    35,438.80/53,139.74 = 16,713.80/x
  3. Step 3: Cross multiply
    35,438.80x = 53,139.74 × 16,713.80
  4. Step 4: Simplify right side
    35,438.80x = 888,167,098.37
  5. Step 5: Solve for x
    x = 888,167,098.37/35,438.80
  6. Step 6: Final answer
    x = 25,062.00

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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.