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Finding the Fourth Proportional to 64,991.61, 89,684.10 and 37,765.26

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Solution

The fourth proportional to 64,991.61, 89,684.10 and 37,765.26 is: 52,113.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,991.61 : 89,684.10 = 37,765.26 : x
  2. Step 2: Convert to fraction form
    64,991.61/89,684.10 = 37,765.26/x
  3. Step 3: Cross multiply
    64,991.61x = 89,684.10 × 37,765.26
  4. Step 4: Simplify right side
    64,991.61x = 3,386,943,354.37
  5. Step 5: Solve for x
    x = 3,386,943,354.37/64,991.61
  6. Step 6: Final answer
    x = 52,113.55

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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.