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Finding the Fourth Proportional to 1,816.63, 2,507 and 1,070.52

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Solution

The fourth proportional to 1,816.63, 2,507 and 1,070.52 is: 1,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.63 : 2,507 = 1,070.52 : x
  2. Step 2: Convert to fraction form
    1,816.63/2,507 = 1,070.52/x
  3. Step 3: Cross multiply
    1,816.63x = 2,507 × 1,070.52
  4. Step 4: Simplify right side
    1,816.63x = 2,683,793.64
  5. Step 5: Solve for x
    x = 2,683,793.64/1,816.63
  6. Step 6: Final answer
    x = 1,477.35

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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.