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Finding the Fourth Proportional to 14,916.60, 20,585.97 and 9,872.01

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Solution

The fourth proportional to 14,916.60, 20,585.97 and 9,872.01 is: 13,624.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,916.60 : 20,585.97 = 9,872.01 : x
  2. Step 2: Convert to fraction form
    14,916.60/20,585.97 = 9,872.01/x
  3. Step 3: Cross multiply
    14,916.60x = 20,585.97 × 9,872.01
  4. Step 4: Simplify right side
    14,916.60x = 203,224,901.70
  5. Step 5: Solve for x
    x = 203,224,901.70/14,916.60
  6. Step 6: Final answer
    x = 13,624.08

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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.