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Finding the Fourth Proportional to 4,888.34, 7,332.51 and 1,425.86

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Solution

The fourth proportional to 4,888.34, 7,332.51 and 1,425.86 is: 2,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.34 : 7,332.51 = 1,425.86 : x
  2. Step 2: Convert to fraction form
    4,888.34/7,332.51 = 1,425.86/x
  3. Step 3: Cross multiply
    4,888.34x = 7,332.51 × 1,425.86
  4. Step 4: Simplify right side
    4,888.34x = 10,455,132.71
  5. Step 5: Solve for x
    x = 10,455,132.71/4,888.34
  6. Step 6: Final answer
    x = 2,138.79

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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.