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Finding the Fourth Proportional to 7,223.40, 9,963.15 and 4,700.88

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Solution

The fourth proportional to 7,223.40, 9,963.15 and 4,700.88 is: 6,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.40 : 9,963.15 = 4,700.88 : x
  2. Step 2: Convert to fraction form
    7,223.40/9,963.15 = 4,700.88/x
  3. Step 3: Cross multiply
    7,223.40x = 9,963.15 × 4,700.88
  4. Step 4: Simplify right side
    7,223.40x = 46,835,572.57
  5. Step 5: Solve for x
    x = 46,835,572.57/7,223.40
  6. Step 6: Final answer
    x = 6,483.87

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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.