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Finding the Fourth Proportional to 14,455.53, 19,951.65 and 8,488.53

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Solution

The fourth proportional to 14,455.53, 19,951.65 and 8,488.53 is: 11,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.53 : 19,951.65 = 8,488.53 : x
  2. Step 2: Convert to fraction form
    14,455.53/19,951.65 = 8,488.53/x
  3. Step 3: Cross multiply
    14,455.53x = 19,951.65 × 8,488.53
  4. Step 4: Simplify right side
    14,455.53x = 169,360,179.57
  5. Step 5: Solve for x
    x = 169,360,179.57/14,455.53
  6. Step 6: Final answer
    x = 11,715.94

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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.