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Finding the Fourth Proportional to 50,387.40, 75,605.40 and 35,564.40

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Solution

The fourth proportional to 50,387.40, 75,605.40 and 35,564.40 is: 53,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,387.40 : 75,605.40 = 35,564.40 : x
  2. Step 2: Convert to fraction form
    50,387.40/75,605.40 = 35,564.40/x
  3. Step 3: Cross multiply
    50,387.40x = 75,605.40 × 35,564.40
  4. Step 4: Simplify right side
    50,387.40x = 2,688,860,687.76
  5. Step 5: Solve for x
    x = 2,688,860,687.76/50,387.40
  6. Step 6: Final answer
    x = 53,363.75

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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.