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Finding the Fourth Proportional to 85,948.34, 118,609.62 and 47,708.60

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Solution

The fourth proportional to 85,948.34, 118,609.62 and 47,708.60 is: 65,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,948.34 : 118,609.62 = 47,708.60 : x
  2. Step 2: Convert to fraction form
    85,948.34/118,609.62 = 47,708.60/x
  3. Step 3: Cross multiply
    85,948.34x = 118,609.62 × 47,708.60
  4. Step 4: Simplify right side
    85,948.34x = 5,658,698,916.73
  5. Step 5: Solve for x
    x = 5,658,698,916.73/85,948.34
  6. Step 6: Final answer
    x = 65,838.37

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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.