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Finding the Fourth Proportional to 63,020.94, 86,970.75 and 34,728.45

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Solution

The fourth proportional to 63,020.94, 86,970.75 and 34,728.45 is: 47,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,020.94 : 86,970.75 = 34,728.45 : x
  2. Step 2: Convert to fraction form
    63,020.94/86,970.75 = 34,728.45/x
  3. Step 3: Cross multiply
    63,020.94x = 86,970.75 × 34,728.45
  4. Step 4: Simplify right side
    63,020.94x = 3,020,359,342.84
  5. Step 5: Solve for x
    x = 3,020,359,342.84/63,020.94
  6. Step 6: Final answer
    x = 47,926.28

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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.