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Finding the Fourth Proportional to 60,689.34, 90,975.20 and 23,220.54

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Solution

The fourth proportional to 60,689.34, 90,975.20 and 23,220.54 is: 34,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689.34 : 90,975.20 = 23,220.54 : x
  2. Step 2: Convert to fraction form
    60,689.34/90,975.20 = 23,220.54/x
  3. Step 3: Cross multiply
    60,689.34x = 90,975.20 × 23,220.54
  4. Step 4: Simplify right side
    60,689.34x = 2,112,493,154.51
  5. Step 5: Solve for x
    x = 2,112,493,154.51/60,689.34
  6. Step 6: Final answer
    x = 34,808.31

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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.