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Finding the Fourth Proportional to 5,722.64, 7,897.08 and 3,364.64

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Solution

The fourth proportional to 5,722.64, 7,897.08 and 3,364.64 is: 4,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.64 : 7,897.08 = 3,364.64 : x
  2. Step 2: Convert to fraction form
    5,722.64/7,897.08 = 3,364.64/x
  3. Step 3: Cross multiply
    5,722.64x = 7,897.08 × 3,364.64
  4. Step 4: Simplify right side
    5,722.64x = 26,570,831.25
  5. Step 5: Solve for x
    x = 26,570,831.25/5,722.64
  6. Step 6: Final answer
    x = 4,643.11

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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.