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Finding the Fourth Proportional to 7,275.71, 10,913.54 and 4,809.98

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Solution

The fourth proportional to 7,275.71, 10,913.54 and 4,809.98 is: 7,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.71 : 10,913.54 = 4,809.98 : x
  2. Step 2: Convert to fraction form
    7,275.71/10,913.54 = 4,809.98/x
  3. Step 3: Cross multiply
    7,275.71x = 10,913.54 × 4,809.98
  4. Step 4: Simplify right side
    7,275.71x = 52,493,830.51
  5. Step 5: Solve for x
    x = 52,493,830.51/7,275.71
  6. Step 6: Final answer
    x = 7,214.95

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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.