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Finding the Fourth Proportional to 9,999.45, 14,934.78 and 9,060.46

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Solution

The fourth proportional to 9,999.45, 14,934.78 and 9,060.46 is: 13,532.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.45 : 14,934.78 = 9,060.46 : x
  2. Step 2: Convert to fraction form
    9,999.45/14,934.78 = 9,060.46/x
  3. Step 3: Cross multiply
    9,999.45x = 14,934.78 × 9,060.46
  4. Step 4: Simplify right side
    9,999.45x = 135,315,939.46
  5. Step 5: Solve for x
    x = 135,315,939.46/9,999.45
  6. Step 6: Final answer
    x = 13,532.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.