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Finding the Fourth Proportional to 7,470.64, 10,309.44 and 4,326.76

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Solution

The fourth proportional to 7,470.64, 10,309.44 and 4,326.76 is: 5,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.64 : 10,309.44 = 4,326.76 : x
  2. Step 2: Convert to fraction form
    7,470.64/10,309.44 = 4,326.76/x
  3. Step 3: Cross multiply
    7,470.64x = 10,309.44 × 4,326.76
  4. Step 4: Simplify right side
    7,470.64x = 44,606,472.61
  5. Step 5: Solve for x
    x = 44,606,472.61/7,470.64
  6. Step 6: Final answer
    x = 5,970.90

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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.