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Finding the Fourth Proportional to 19,358.70, 29,005.65 and 9,476.70

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Solution

The fourth proportional to 19,358.70, 29,005.65 and 9,476.70 is: 14,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.70 : 29,005.65 = 9,476.70 : x
  2. Step 2: Convert to fraction form
    19,358.70/29,005.65 = 9,476.70/x
  3. Step 3: Cross multiply
    19,358.70x = 29,005.65 × 9,476.70
  4. Step 4: Simplify right side
    19,358.70x = 274,877,843.36
  5. Step 5: Solve for x
    x = 274,877,843.36/19,358.70
  6. Step 6: Final answer
    x = 14,199.19

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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.