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Finding the Fourth Proportional to 77,295.67, 106,671.86 and 47,076.13

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Solution

The fourth proportional to 77,295.67, 106,671.86 and 47,076.13 is: 64,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,295.67 : 106,671.86 = 47,076.13 : x
  2. Step 2: Convert to fraction form
    77,295.67/106,671.86 = 47,076.13/x
  3. Step 3: Cross multiply
    77,295.67x = 106,671.86 × 47,076.13
  4. Step 4: Simplify right side
    77,295.67x = 5,021,698,348.70
  5. Step 5: Solve for x
    x = 5,021,698,348.70/77,295.67
  6. Step 6: Final answer
    x = 64,967.40

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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.