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Finding the Fourth Proportional to 11,870.92, 17,809.01 and 4,475.45

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Solution

The fourth proportional to 11,870.92, 17,809.01 and 4,475.45 is: 6,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.92 : 17,809.01 = 4,475.45 : x
  2. Step 2: Convert to fraction form
    11,870.92/17,809.01 = 4,475.45/x
  3. Step 3: Cross multiply
    11,870.92x = 17,809.01 × 4,475.45
  4. Step 4: Simplify right side
    11,870.92x = 79,703,397.91
  5. Step 5: Solve for x
    x = 79,703,397.91/11,870.92
  6. Step 6: Final answer
    x = 6,714.17

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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.