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Finding the Fourth Proportional to 62,880.40, 86,773.65 and 34,200.63

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Solution

The fourth proportional to 62,880.40, 86,773.65 and 34,200.63 is: 47,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,880.40 : 86,773.65 = 34,200.63 : x
  2. Step 2: Convert to fraction form
    62,880.40/86,773.65 = 34,200.63/x
  3. Step 3: Cross multiply
    62,880.40x = 86,773.65 × 34,200.63
  4. Step 4: Simplify right side
    62,880.40x = 2,967,713,497.40
  5. Step 5: Solve for x
    x = 2,967,713,497.40/62,880.40
  6. Step 6: Final answer
    x = 47,196.16

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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.