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Finding the Fourth Proportional to 63,033.90, 86,985.60 and 34,353.78

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Solution

The fourth proportional to 63,033.90, 86,985.60 and 34,353.78 is: 47,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,033.90 : 86,985.60 = 34,353.78 : x
  2. Step 2: Convert to fraction form
    63,033.90/86,985.60 = 34,353.78/x
  3. Step 3: Cross multiply
    63,033.90x = 86,985.60 × 34,353.78
  4. Step 4: Simplify right side
    63,033.90x = 2,988,284,165.57
  5. Step 5: Solve for x
    x = 2,988,284,165.57/63,033.90
  6. Step 6: Final answer
    x = 47,407.57

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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.