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Finding the Fourth Proportional to 65,688.33, 90,649.99 and 37,394.02

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Solution

The fourth proportional to 65,688.33, 90,649.99 and 37,394.02 is: 51,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.33 : 90,649.99 = 37,394.02 : x
  2. Step 2: Convert to fraction form
    65,688.33/90,649.99 = 37,394.02/x
  3. Step 3: Cross multiply
    65,688.33x = 90,649.99 × 37,394.02
  4. Step 4: Simplify right side
    65,688.33x = 3,389,767,699.11
  5. Step 5: Solve for x
    x = 3,389,767,699.11/65,688.33
  6. Step 6: Final answer
    x = 51,603.80

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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.