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Finding the Fourth Proportional to 62,960.64, 86,885.60 and 34,666.40

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Solution

The fourth proportional to 62,960.64, 86,885.60 and 34,666.40 is: 47,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,960.64 : 86,885.60 = 34,666.40 : x
  2. Step 2: Convert to fraction form
    62,960.64/86,885.60 = 34,666.40/x
  3. Step 3: Cross multiply
    62,960.64x = 86,885.60 × 34,666.40
  4. Step 4: Simplify right side
    62,960.64x = 3,012,010,963.84
  5. Step 5: Solve for x
    x = 3,012,010,963.84/62,960.64
  6. Step 6: Final answer
    x = 47,839.59

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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.