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Finding the Fourth Proportional to 52,749.90, 79,495.11 and 47,490.16

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Solution

The fourth proportional to 52,749.90, 79,495.11 and 47,490.16 is: 71,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,749.90 : 79,495.11 = 47,490.16 : x
  2. Step 2: Convert to fraction form
    52,749.90/79,495.11 = 47,490.16/x
  3. Step 3: Cross multiply
    52,749.90x = 79,495.11 × 47,490.16
  4. Step 4: Simplify right side
    52,749.90x = 3,775,235,700.89
  5. Step 5: Solve for x
    x = 3,775,235,700.89/52,749.90
  6. Step 6: Final answer
    x = 71,568.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.