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Finding the Fourth Proportional to 50,486.80, 75,733.80 and 15,426.40

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Solution

The fourth proportional to 50,486.80, 75,733.80 and 15,426.40 is: 23,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486.80 : 75,733.80 = 15,426.40 : x
  2. Step 2: Convert to fraction form
    50,486.80/75,733.80 = 15,426.40/x
  3. Step 3: Cross multiply
    50,486.80x = 75,733.80 × 15,426.40
  4. Step 4: Simplify right side
    50,486.80x = 1,168,299,892.32
  5. Step 5: Solve for x
    x = 1,168,299,892.32/50,486.80
  6. Step 6: Final answer
    x = 23,140.70

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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.