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Finding the Fourth Proportional to 5,223.40, 7,332.20 and 5,223.40

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Solution

The fourth proportional to 5,223.40, 7,332.20 and 5,223.40 is: 7,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.40 : 7,332.20 = 5,223.40 : x
  2. Step 2: Convert to fraction form
    5,223.40/7,332.20 = 5,223.40/x
  3. Step 3: Cross multiply
    5,223.40x = 7,332.20 × 5,223.40
  4. Step 4: Simplify right side
    5,223.40x = 38,299,013.48
  5. Step 5: Solve for x
    x = 38,299,013.48/5,223.40
  6. Step 6: Final answer
    x = 7,332.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.