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Finding the Fourth Proportional to 35,497.40, 53,143.70 and 21,673.40

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Solution

The fourth proportional to 35,497.40, 53,143.70 and 21,673.40 is: 32,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,497.40 : 53,143.70 = 21,673.40 : x
  2. Step 2: Convert to fraction form
    35,497.40/53,143.70 = 21,673.40/x
  3. Step 3: Cross multiply
    35,497.40x = 53,143.70 × 21,673.40
  4. Step 4: Simplify right side
    35,497.40x = 1,151,804,667.58
  5. Step 5: Solve for x
    x = 1,151,804,667.58/35,497.40
  6. Step 6: Final answer
    x = 32,447.58

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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.