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Finding the Fourth Proportional to 7,901.74, 11,848.71 and 4,202.98

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Solution

The fourth proportional to 7,901.74, 11,848.71 and 4,202.98 is: 6,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.74 : 11,848.71 = 4,202.98 : x
  2. Step 2: Convert to fraction form
    7,901.74/11,848.71 = 4,202.98/x
  3. Step 3: Cross multiply
    7,901.74x = 11,848.71 × 4,202.98
  4. Step 4: Simplify right side
    7,901.74x = 49,799,891.16
  5. Step 5: Solve for x
    x = 49,799,891.16/7,901.74
  6. Step 6: Final answer
    x = 6,302.40

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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.