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Finding the Fourth Proportional to 76,671.84, 114,999.55 and 26,752.88

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Solution

The fourth proportional to 76,671.84, 114,999.55 and 26,752.88 is: 40,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,671.84 : 114,999.55 = 26,752.88 : x
  2. Step 2: Convert to fraction form
    76,671.84/114,999.55 = 26,752.88/x
  3. Step 3: Cross multiply
    76,671.84x = 114,999.55 × 26,752.88
  4. Step 4: Simplify right side
    76,671.84x = 3,076,569,187.25
  5. Step 5: Solve for x
    x = 3,076,569,187.25/76,671.84
  6. Step 6: Final answer
    x = 40,126.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.