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Finding the Fourth Proportional to 35,089.68, 48,426.88 and 19,979.04

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Solution

The fourth proportional to 35,089.68, 48,426.88 and 19,979.04 is: 27,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,089.68 : 48,426.88 = 19,979.04 : x
  2. Step 2: Convert to fraction form
    35,089.68/48,426.88 = 19,979.04/x
  3. Step 3: Cross multiply
    35,089.68x = 48,426.88 × 19,979.04
  4. Step 4: Simplify right side
    35,089.68x = 967,522,572.60
  5. Step 5: Solve for x
    x = 967,522,572.60/35,089.68
  6. Step 6: Final answer
    x = 27,572.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.