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Finding the Fourth Proportional to 61,118.21, 84,326.86 and 35,270.21

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Solution

The fourth proportional to 61,118.21, 84,326.86 and 35,270.21 is: 48,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,118.21 : 84,326.86 = 35,270.21 : x
  2. Step 2: Convert to fraction form
    61,118.21/84,326.86 = 35,270.21/x
  3. Step 3: Cross multiply
    61,118.21x = 84,326.86 × 35,270.21
  4. Step 4: Simplify right side
    61,118.21x = 2,974,226,060.84
  5. Step 5: Solve for x
    x = 2,974,226,060.84/61,118.21
  6. Step 6: Final answer
    x = 48,663.50

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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.