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Finding the Fourth Proportional to 9,876.93, 13,622.04 and 7,043.40

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Solution

The fourth proportional to 9,876.93, 13,622.04 and 7,043.40 is: 9,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.93 : 13,622.04 = 7,043.40 : x
  2. Step 2: Convert to fraction form
    9,876.93/13,622.04 = 7,043.40/x
  3. Step 3: Cross multiply
    9,876.93x = 13,622.04 × 7,043.40
  4. Step 4: Simplify right side
    9,876.93x = 95,945,373.21
  5. Step 5: Solve for x
    x = 95,945,373.21/9,876.93
  6. Step 6: Final answer
    x = 9,714.09

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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.