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Finding the Fourth Proportional to 7,831.88, 10,808.04 and 4,295.10

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Solution

The fourth proportional to 7,831.88, 10,808.04 and 4,295.10 is: 5,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.88 : 10,808.04 = 4,295.10 : x
  2. Step 2: Convert to fraction form
    7,831.88/10,808.04 = 4,295.10/x
  3. Step 3: Cross multiply
    7,831.88x = 10,808.04 × 4,295.10
  4. Step 4: Simplify right side
    7,831.88x = 46,421,612.60
  5. Step 5: Solve for x
    x = 46,421,612.60/7,831.88
  6. Step 6: Final answer
    x = 5,927.26

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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.