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Finding the Fourth Proportional to 62,881.70, 86,774.93 and 34,587.38

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Solution

The fourth proportional to 62,881.70, 86,774.93 and 34,587.38 is: 47,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.70 : 86,774.93 = 34,587.38 : x
  2. Step 2: Convert to fraction form
    62,881.70/86,774.93 = 34,587.38/x
  3. Step 3: Cross multiply
    62,881.70x = 86,774.93 × 34,587.38
  4. Step 4: Simplify right side
    62,881.70x = 3,001,317,652.09
  5. Step 5: Solve for x
    x = 3,001,317,652.09/62,881.70
  6. Step 6: Final answer
    x = 47,729.59

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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.