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Finding the Fourth Proportional to 5,335.56, 7,950.96 and 5,159.16

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Solution

The fourth proportional to 5,335.56, 7,950.96 and 5,159.16 is: 7,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.56 : 7,950.96 = 5,159.16 : x
  2. Step 2: Convert to fraction form
    5,335.56/7,950.96 = 5,159.16/x
  3. Step 3: Cross multiply
    5,335.56x = 7,950.96 × 5,159.16
  4. Step 4: Simplify right side
    5,335.56x = 41,020,274.79
  5. Step 5: Solve for x
    x = 41,020,274.79/5,335.56
  6. Step 6: Final answer
    x = 7,688.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.