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Finding the Fourth Proportional to 60,490.09, 90,734.93 and 15,511.40

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Solution

The fourth proportional to 60,490.09, 90,734.93 and 15,511.40 is: 23,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.09 : 90,734.93 = 15,511.40 : x
  2. Step 2: Convert to fraction form
    60,490.09/90,734.93 = 15,511.40/x
  3. Step 3: Cross multiply
    60,490.09x = 90,734.93 × 15,511.40
  4. Step 4: Simplify right side
    60,490.09x = 1,407,425,261.97
  5. Step 5: Solve for x
    x = 1,407,425,261.97/60,490.09
  6. Step 6: Final answer
    x = 23,267.04

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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.