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Finding the Fourth Proportional to 62,700.84, 86,486.19 and 37,188.12

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Solution

The fourth proportional to 62,700.84, 86,486.19 and 37,188.12 is: 51,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,700.84 : 86,486.19 = 37,188.12 : x
  2. Step 2: Convert to fraction form
    62,700.84/86,486.19 = 37,188.12/x
  3. Step 3: Cross multiply
    62,700.84x = 86,486.19 × 37,188.12
  4. Step 4: Simplify right side
    62,700.84x = 3,216,258,812.06
  5. Step 5: Solve for x
    x = 3,216,258,812.06/62,700.84
  6. Step 6: Final answer
    x = 51,295.31

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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.