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Finding the Fourth Proportional to 11,790.35, 17,655.95 and 7,043.58

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Solution

The fourth proportional to 11,790.35, 17,655.95 and 7,043.58 is: 10,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.35 : 17,655.95 = 7,043.58 : x
  2. Step 2: Convert to fraction form
    11,790.35/17,655.95 = 7,043.58/x
  3. Step 3: Cross multiply
    11,790.35x = 17,655.95 × 7,043.58
  4. Step 4: Simplify right side
    11,790.35x = 124,361,076.06
  5. Step 5: Solve for x
    x = 124,361,076.06/11,790.35
  6. Step 6: Final answer
    x = 10,547.70

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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.