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Finding the Fourth Proportional to 11,870.01, 17,805.15 and 11,509.02

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Solution

The fourth proportional to 11,870.01, 17,805.15 and 11,509.02 is: 17,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.01 : 17,805.15 = 11,509.02 : x
  2. Step 2: Convert to fraction form
    11,870.01/17,805.15 = 11,509.02/x
  3. Step 3: Cross multiply
    11,870.01x = 17,805.15 × 11,509.02
  4. Step 4: Simplify right side
    11,870.01x = 204,919,827.45
  5. Step 5: Solve for x
    x = 204,919,827.45/11,870.01
  6. Step 6: Final answer
    x = 17,263.66

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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.