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Finding the Fourth Proportional to 15,060.70, 20,784.54 and 9,092.77

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Solution

The fourth proportional to 15,060.70, 20,784.54 and 9,092.77 is: 12,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.70 : 20,784.54 = 9,092.77 : x
  2. Step 2: Convert to fraction form
    15,060.70/20,784.54 = 9,092.77/x
  3. Step 3: Cross multiply
    15,060.70x = 20,784.54 × 9,092.77
  4. Step 4: Simplify right side
    15,060.70x = 188,989,041.78
  5. Step 5: Solve for x
    x = 188,989,041.78/15,060.70
  6. Step 6: Final answer
    x = 12,548.49

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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.