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Finding the Fourth Proportional to 5,703.52, 7,870.80 and 3,347.36

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Solution

The fourth proportional to 5,703.52, 7,870.80 and 3,347.36 is: 4,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.52 : 7,870.80 = 3,347.36 : x
  2. Step 2: Convert to fraction form
    5,703.52/7,870.80 = 3,347.36/x
  3. Step 3: Cross multiply
    5,703.52x = 7,870.80 × 3,347.36
  4. Step 4: Simplify right side
    5,703.52x = 26,346,401.09
  5. Step 5: Solve for x
    x = 26,346,401.09/5,703.52
  6. Step 6: Final answer
    x = 4,619.32

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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.