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Finding the Fourth Proportional to 72,275.40, 108,410.88 and 19,683.24

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Solution

The fourth proportional to 72,275.40, 108,410.88 and 19,683.24 is: 29,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,275.40 : 108,410.88 = 19,683.24 : x
  2. Step 2: Convert to fraction form
    72,275.40/108,410.88 = 19,683.24/x
  3. Step 3: Cross multiply
    72,275.40x = 108,410.88 × 19,683.24
  4. Step 4: Simplify right side
    72,275.40x = 2,133,877,369.65
  5. Step 5: Solve for x
    x = 2,133,877,369.65/72,275.40
  6. Step 6: Final answer
    x = 29,524.26

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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.