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Finding the Fourth Proportional to 60,042.89, 90,064.40 and 15,669.60

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Solution

The fourth proportional to 60,042.89, 90,064.40 and 15,669.60 is: 23,504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,042.89 : 90,064.40 = 15,669.60 : x
  2. Step 2: Convert to fraction form
    60,042.89/90,064.40 = 15,669.60/x
  3. Step 3: Cross multiply
    60,042.89x = 90,064.40 × 15,669.60
  4. Step 4: Simplify right side
    60,042.89x = 1,411,273,043.89
  5. Step 5: Solve for x
    x = 1,411,273,043.89/60,042.89
  6. Step 6: Final answer
    x = 23,504.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.