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Finding the Fourth Proportional to 7,427.79, 10,250.01 and 4,070.70

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Solution

The fourth proportional to 7,427.79, 10,250.01 and 4,070.70 is: 5,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.79 : 10,250.01 = 4,070.70 : x
  2. Step 2: Convert to fraction form
    7,427.79/10,250.01 = 4,070.70/x
  3. Step 3: Cross multiply
    7,427.79x = 10,250.01 × 4,070.70
  4. Step 4: Simplify right side
    7,427.79x = 41,724,715.71
  5. Step 5: Solve for x
    x = 41,724,715.71/7,427.79
  6. Step 6: Final answer
    x = 5,617.38

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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.