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Finding the Fourth Proportional to 83,802.50, 115,649.64 and 45,564.62

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Solution

The fourth proportional to 83,802.50, 115,649.64 and 45,564.62 is: 62,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,802.50 : 115,649.64 = 45,564.62 : x
  2. Step 2: Convert to fraction form
    83,802.50/115,649.64 = 45,564.62/x
  3. Step 3: Cross multiply
    83,802.50x = 115,649.64 × 45,564.62
  4. Step 4: Simplify right side
    83,802.50x = 5,269,531,899.74
  5. Step 5: Solve for x
    x = 5,269,531,899.74/83,802.50
  6. Step 6: Final answer
    x = 62,880.37

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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.