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Finding the Fourth Proportional to 35,644.60, 53,425.56 and 13,443.76

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Solution

The fourth proportional to 35,644.60, 53,425.56 and 13,443.76 is: 20,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,644.60 : 53,425.56 = 13,443.76 : x
  2. Step 2: Convert to fraction form
    35,644.60/53,425.56 = 13,443.76/x
  3. Step 3: Cross multiply
    35,644.60x = 53,425.56 × 13,443.76
  4. Step 4: Simplify right side
    35,644.60x = 718,240,406.51
  5. Step 5: Solve for x
    x = 718,240,406.51/35,644.60
  6. Step 6: Final answer
    x = 20,150.05

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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.