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Finding the Fourth Proportional to 7,281.01, 10,921.52 and 4,831.48

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Solution

The fourth proportional to 7,281.01, 10,921.52 and 4,831.48 is: 7,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.01 : 10,921.52 = 4,831.48 : x
  2. Step 2: Convert to fraction form
    7,281.01/10,921.52 = 4,831.48/x
  3. Step 3: Cross multiply
    7,281.01x = 10,921.52 × 4,831.48
  4. Step 4: Simplify right side
    7,281.01x = 52,767,105.45
  5. Step 5: Solve for x
    x = 52,767,105.45/7,281.01
  6. Step 6: Final answer
    x = 7,247.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.