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Finding the Fourth Proportional to 4,673.90, 7,012.16 and 1,386.92

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Solution

The fourth proportional to 4,673.90, 7,012.16 and 1,386.92 is: 2,080.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,673.90 : 7,012.16 = 1,386.92 : x
  2. Step 2: Convert to fraction form
    4,673.90/7,012.16 = 1,386.92/x
  3. Step 3: Cross multiply
    4,673.90x = 7,012.16 × 1,386.92
  4. Step 4: Simplify right side
    4,673.90x = 9,725,304.95
  5. Step 5: Solve for x
    x = 9,725,304.95/4,673.90
  6. Step 6: Final answer
    x = 2,080.77

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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.