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Finding the Fourth Proportional to 7,807.19, 10,774.01 and 4,270.46

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Solution

The fourth proportional to 7,807.19, 10,774.01 and 4,270.46 is: 5,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.19 : 10,774.01 = 4,270.46 : x
  2. Step 2: Convert to fraction form
    7,807.19/10,774.01 = 4,270.46/x
  3. Step 3: Cross multiply
    7,807.19x = 10,774.01 × 4,270.46
  4. Step 4: Simplify right side
    7,807.19x = 46,009,935.55
  5. Step 5: Solve for x
    x = 46,009,935.55/7,807.19
  6. Step 6: Final answer
    x = 5,893.28

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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.