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Finding the Fourth Proportional to 49,315.40, 73,973.10 and 19,737.80

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Solution

The fourth proportional to 49,315.40, 73,973.10 and 19,737.80 is: 29,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,315.40 : 73,973.10 = 19,737.80 : x
  2. Step 2: Convert to fraction form
    49,315.40/73,973.10 = 19,737.80/x
  3. Step 3: Cross multiply
    49,315.40x = 73,973.10 × 19,737.80
  4. Step 4: Simplify right side
    49,315.40x = 1,460,066,253.18
  5. Step 5: Solve for x
    x = 1,460,066,253.18/49,315.40
  6. Step 6: Final answer
    x = 29,606.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.