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Finding the Fourth Proportional to 63,011.68, 86,955.60 and 34,716.40

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Solution

The fourth proportional to 63,011.68, 86,955.60 and 34,716.40 is: 47,908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,011.68 : 86,955.60 = 34,716.40 : x
  2. Step 2: Convert to fraction form
    63,011.68/86,955.60 = 34,716.40/x
  3. Step 3: Cross multiply
    63,011.68x = 86,955.60 × 34,716.40
  4. Step 4: Simplify right side
    63,011.68x = 3,018,785,391.84
  5. Step 5: Solve for x
    x = 3,018,785,391.84/63,011.68
  6. Step 6: Final answer
    x = 47,908.35

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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.