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Finding the Fourth Proportional to 52,673.28, 79,009.92 and 21,097.68

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Solution

The fourth proportional to 52,673.28, 79,009.92 and 21,097.68 is: 31,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,673.28 : 79,009.92 = 21,097.68 : x
  2. Step 2: Convert to fraction form
    52,673.28/79,009.92 = 21,097.68/x
  3. Step 3: Cross multiply
    52,673.28x = 79,009.92 × 21,097.68
  4. Step 4: Simplify right side
    52,673.28x = 1,666,926,008.99
  5. Step 5: Solve for x
    x = 1,666,926,008.99/52,673.28
  6. Step 6: Final answer
    x = 31,646.52

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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.