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Finding the Fourth Proportional to 30,516.48, 45,730.56 and 14,916.48

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Solution

The fourth proportional to 30,516.48, 45,730.56 and 14,916.48 is: 22,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.48 : 45,730.56 = 14,916.48 : x
  2. Step 2: Convert to fraction form
    30,516.48/45,730.56 = 14,916.48/x
  3. Step 3: Cross multiply
    30,516.48x = 45,730.56 × 14,916.48
  4. Step 4: Simplify right side
    30,516.48x = 682,138,983.63
  5. Step 5: Solve for x
    x = 682,138,983.63/30,516.48
  6. Step 6: Final answer
    x = 22,353.13

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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.