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Finding the Fourth Proportional to 6,929.16, 9,559.20 and 4,690.26

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Solution

The fourth proportional to 6,929.16, 9,559.20 and 4,690.26 is: 6,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.16 : 9,559.20 = 4,690.26 : x
  2. Step 2: Convert to fraction form
    6,929.16/9,559.20 = 4,690.26/x
  3. Step 3: Cross multiply
    6,929.16x = 9,559.20 × 4,690.26
  4. Step 4: Simplify right side
    6,929.16x = 44,835,133.39
  5. Step 5: Solve for x
    x = 44,835,133.39/6,929.16
  6. Step 6: Final answer
    x = 6,470.50

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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.