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Finding the Fourth Proportional to 8,710.36, 12,019.84 and 4,731.46

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Solution

The fourth proportional to 8,710.36, 12,019.84 and 4,731.46 is: 6,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.36 : 12,019.84 = 4,731.46 : x
  2. Step 2: Convert to fraction form
    8,710.36/12,019.84 = 4,731.46/x
  3. Step 3: Cross multiply
    8,710.36x = 12,019.84 × 4,731.46
  4. Step 4: Simplify right side
    8,710.36x = 56,871,392.17
  5. Step 5: Solve for x
    x = 56,871,392.17/8,710.36
  6. Step 6: Final answer
    x = 6,529.17

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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.