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Finding the Fourth Proportional to 50,798.40, 70,098.71 and 28,136.04

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Solution

The fourth proportional to 50,798.40, 70,098.71 and 28,136.04 is: 38,826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,798.40 : 70,098.71 = 28,136.04 : x
  2. Step 2: Convert to fraction form
    50,798.40/70,098.71 = 28,136.04/x
  3. Step 3: Cross multiply
    50,798.40x = 70,098.71 × 28,136.04
  4. Step 4: Simplify right side
    50,798.40x = 1,972,299,967.83
  5. Step 5: Solve for x
    x = 1,972,299,967.83/50,798.40
  6. Step 6: Final answer
    x = 38,826.03

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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.