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Finding the Fourth Proportional to 62,408.61, 86,123.93 and 34,114.32

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Solution

The fourth proportional to 62,408.61, 86,123.93 and 34,114.32 is: 47,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,408.61 : 86,123.93 = 34,114.32 : x
  2. Step 2: Convert to fraction form
    62,408.61/86,123.93 = 34,114.32/x
  3. Step 3: Cross multiply
    62,408.61x = 86,123.93 × 34,114.32
  4. Step 4: Simplify right side
    62,408.61x = 2,938,059,137.11
  5. Step 5: Solve for x
    x = 2,938,059,137.11/62,408.61
  6. Step 6: Final answer
    x = 47,077.79

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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.