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Finding the Fourth Proportional to 5,648.70, 7,798.16 and 4,386.92

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Solution

The fourth proportional to 5,648.70, 7,798.16 and 4,386.92 is: 6,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.70 : 7,798.16 = 4,386.92 : x
  2. Step 2: Convert to fraction form
    5,648.70/7,798.16 = 4,386.92/x
  3. Step 3: Cross multiply
    5,648.70x = 7,798.16 × 4,386.92
  4. Step 4: Simplify right side
    5,648.70x = 34,209,843.14
  5. Step 5: Solve for x
    x = 34,209,843.14/5,648.70
  6. Step 6: Final answer
    x = 6,056.23

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1.5x scale

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.