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Finding the Fourth Proportional to 1,700.70, 2,547.45 and 1,412.70

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Solution

The fourth proportional to 1,700.70, 2,547.45 and 1,412.70 is: 2,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.70 : 2,547.45 = 1,412.70 : x
  2. Step 2: Convert to fraction form
    1,700.70/2,547.45 = 1,412.70/x
  3. Step 3: Cross multiply
    1,700.70x = 2,547.45 × 1,412.70
  4. Step 4: Simplify right side
    1,700.70x = 3,598,782.62
  5. Step 5: Solve for x
    x = 3,598,782.62/1,700.70
  6. Step 6: Final answer
    x = 2,116.06

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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.