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Finding the Fourth Proportional to 14,358.70, 19,809.47 and 10,590.79

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Solution

The fourth proportional to 14,358.70, 19,809.47 and 10,590.79 is: 14,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.70 : 19,809.47 = 10,590.79 : x
  2. Step 2: Convert to fraction form
    14,358.70/19,809.47 = 10,590.79/x
  3. Step 3: Cross multiply
    14,358.70x = 19,809.47 × 10,590.79
  4. Step 4: Simplify right side
    14,358.70x = 209,797,883.83
  5. Step 5: Solve for x
    x = 209,797,883.83/14,358.70
  6. Step 6: Final answer
    x = 14,611.21

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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.