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Finding the Fourth Proportional to 51,341.80, 77,011.62 and 23,639.80

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Solution

The fourth proportional to 51,341.80, 77,011.62 and 23,639.80 is: 35,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,341.80 : 77,011.62 = 23,639.80 : x
  2. Step 2: Convert to fraction form
    51,341.80/77,011.62 = 23,639.80/x
  3. Step 3: Cross multiply
    51,341.80x = 77,011.62 × 23,639.80
  4. Step 4: Simplify right side
    51,341.80x = 1,820,539,294.48
  5. Step 5: Solve for x
    x = 1,820,539,294.48/51,341.80
  6. Step 6: Final answer
    x = 35,459.20

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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.