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Finding the Fourth Proportional to 14,392.79, 19,866.26 and 9,357.53

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Solution

The fourth proportional to 14,392.79, 19,866.26 and 9,357.53 is: 12,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.79 : 19,866.26 = 9,357.53 : x
  2. Step 2: Convert to fraction form
    14,392.79/19,866.26 = 9,357.53/x
  3. Step 3: Cross multiply
    14,392.79x = 19,866.26 × 9,357.53
  4. Step 4: Simplify right side
    14,392.79x = 185,899,048.00
  5. Step 5: Solve for x
    x = 185,899,048.00/14,392.79
  6. Step 6: Final answer
    x = 12,916.12

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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.