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Finding the Fourth Proportional to 11,264.70, 16,897.05 and 9,077.70

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Solution

The fourth proportional to 11,264.70, 16,897.05 and 9,077.70 is: 13,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,264.70 : 16,897.05 = 9,077.70 : x
  2. Step 2: Convert to fraction form
    11,264.70/16,897.05 = 9,077.70/x
  3. Step 3: Cross multiply
    11,264.70x = 16,897.05 × 9,077.70
  4. Step 4: Simplify right side
    11,264.70x = 153,386,350.79
  5. Step 5: Solve for x
    x = 153,386,350.79/11,264.70
  6. Step 6: Final answer
    x = 13,616.55

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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.