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Finding the Fourth Proportional to 85,592.76, 118,115.80 and 47,351.32

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Solution

The fourth proportional to 85,592.76, 118,115.80 and 47,351.32 is: 65,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,592.76 : 118,115.80 = 47,351.32 : x
  2. Step 2: Convert to fraction form
    85,592.76/118,115.80 = 47,351.32/x
  3. Step 3: Cross multiply
    85,592.76x = 118,115.80 × 47,351.32
  4. Step 4: Simplify right side
    85,592.76x = 5,592,939,042.86
  5. Step 5: Solve for x
    x = 5,592,939,042.86/85,592.76
  6. Step 6: Final answer
    x = 65,343.60

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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.