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Finding the Fourth Proportional to 62,970.16, 86,847.16 and 45,955.28

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Solution

The fourth proportional to 62,970.16, 86,847.16 and 45,955.28 is: 63,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,970.16 : 86,847.16 = 45,955.28 : x
  2. Step 2: Convert to fraction form
    62,970.16/86,847.16 = 45,955.28/x
  3. Step 3: Cross multiply
    62,970.16x = 86,847.16 × 45,955.28
  4. Step 4: Simplify right side
    62,970.16x = 3,991,085,555.00
  5. Step 5: Solve for x
    x = 3,991,085,555.00/62,970.16
  6. Step 6: Final answer
    x = 63,380.58

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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.