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Finding the Fourth Proportional to 35,211.47, 52,817.29 and 8,916.21

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Solution

The fourth proportional to 35,211.47, 52,817.29 and 8,916.21 is: 13,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,211.47 : 52,817.29 = 8,916.21 : x
  2. Step 2: Convert to fraction form
    35,211.47/52,817.29 = 8,916.21/x
  3. Step 3: Cross multiply
    35,211.47x = 52,817.29 × 8,916.21
  4. Step 4: Simplify right side
    35,211.47x = 470,930,026.98
  5. Step 5: Solve for x
    x = 470,930,026.98/35,211.47
  6. Step 6: Final answer
    x = 13,374.34

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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.