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Finding the Fourth Proportional to 60,890.18, 83,973.84 and 50,715

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Solution

The fourth proportional to 60,890.18, 83,973.84 and 50,715 is: 69,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,890.18 : 83,973.84 = 50,715 : x
  2. Step 2: Convert to fraction form
    60,890.18/83,973.84 = 50,715/x
  3. Step 3: Cross multiply
    60,890.18x = 83,973.84 × 50,715
  4. Step 4: Simplify right side
    60,890.18x = 4,258,733,295.60
  5. Step 5: Solve for x
    x = 4,258,733,295.60/60,890.18
  6. Step 6: Final answer
    x = 69,941.22

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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.