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Finding the Fourth Proportional to 37,509.92, 51,774.88 and 21,605.68

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Solution

The fourth proportional to 37,509.92, 51,774.88 and 21,605.68 is: 29,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,509.92 : 51,774.88 = 21,605.68 : x
  2. Step 2: Convert to fraction form
    37,509.92/51,774.88 = 21,605.68/x
  3. Step 3: Cross multiply
    37,509.92x = 51,774.88 × 21,605.68
  4. Step 4: Simplify right side
    37,509.92x = 1,118,631,489.32
  5. Step 5: Solve for x
    x = 1,118,631,489.32/37,509.92
  6. Step 6: Final answer
    x = 29,822.28

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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.