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Finding the Fourth Proportional to 85,886.90, 118,530.22 and 47,652.46

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Solution

The fourth proportional to 85,886.90, 118,530.22 and 47,652.46 is: 65,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,886.90 : 118,530.22 = 47,652.46 : x
  2. Step 2: Convert to fraction form
    85,886.90/118,530.22 = 47,652.46/x
  3. Step 3: Cross multiply
    85,886.90x = 118,530.22 × 47,652.46
  4. Step 4: Simplify right side
    85,886.90x = 5,648,256,567.34
  5. Step 5: Solve for x
    x = 5,648,256,567.34/85,886.90
  6. Step 6: Final answer
    x = 65,763.89

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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.