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Finding the Fourth Proportional to 29,530.72, 40,756.72 and 19,457.52

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Solution

The fourth proportional to 29,530.72, 40,756.72 and 19,457.52 is: 26,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,530.72 : 40,756.72 = 19,457.52 : x
  2. Step 2: Convert to fraction form
    29,530.72/40,756.72 = 19,457.52/x
  3. Step 3: Cross multiply
    29,530.72x = 40,756.72 × 19,457.52
  4. Step 4: Simplify right side
    29,530.72x = 793,024,694.53
  5. Step 5: Solve for x
    x = 793,024,694.53/29,530.72
  6. Step 6: Final answer
    x = 26,854.23

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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.