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Finding the Fourth Proportional to 6,477.19, 8,939.16 and 4,240.28

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Solution

The fourth proportional to 6,477.19, 8,939.16 and 4,240.28 is: 5,852.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.19 : 8,939.16 = 4,240.28 : x
  2. Step 2: Convert to fraction form
    6,477.19/8,939.16 = 4,240.28/x
  3. Step 3: Cross multiply
    6,477.19x = 8,939.16 × 4,240.28
  4. Step 4: Simplify right side
    6,477.19x = 37,904,563.71
  5. Step 5: Solve for x
    x = 37,904,563.71/6,477.19
  6. Step 6: Final answer
    x = 5,852.01

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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.