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Finding the Fourth Proportional to 7,489.42, 10,335.35 and 4,302.92

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Solution

The fourth proportional to 7,489.42, 10,335.35 and 4,302.92 is: 5,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.42 : 10,335.35 = 4,302.92 : x
  2. Step 2: Convert to fraction form
    7,489.42/10,335.35 = 4,302.92/x
  3. Step 3: Cross multiply
    7,489.42x = 10,335.35 × 4,302.92
  4. Step 4: Simplify right side
    7,489.42x = 44,472,220.82
  5. Step 5: Solve for x
    x = 44,472,220.82/7,489.42
  6. Step 6: Final answer
    x = 5,938.01

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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.