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Finding the Fourth Proportional to 65,305.08, 90,119.52 and 37,010.88

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Solution

The fourth proportional to 65,305.08, 90,119.52 and 37,010.88 is: 51,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,305.08 : 90,119.52 = 37,010.88 : x
  2. Step 2: Convert to fraction form
    65,305.08/90,119.52 = 37,010.88/x
  3. Step 3: Cross multiply
    65,305.08x = 90,119.52 × 37,010.88
  4. Step 4: Simplify right side
    65,305.08x = 3,335,402,740.38
  5. Step 5: Solve for x
    x = 3,335,402,740.38/65,305.08
  6. Step 6: Final answer
    x = 51,074.17

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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.