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Finding the Fourth Proportional to 16,656.71, 22,985.84 and 9,103.05

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Solution

The fourth proportional to 16,656.71, 22,985.84 and 9,103.05 is: 12,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656.71 : 22,985.84 = 9,103.05 : x
  2. Step 2: Convert to fraction form
    16,656.71/22,985.84 = 9,103.05/x
  3. Step 3: Cross multiply
    16,656.71x = 22,985.84 × 9,103.05
  4. Step 4: Simplify right side
    16,656.71x = 209,241,273.57
  5. Step 5: Solve for x
    x = 209,241,273.57/16,656.71
  6. Step 6: Final answer
    x = 12,561.98

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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.