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Finding the Fourth Proportional to 53,862.40, 80,830.52 and 18,802.08

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Solution

The fourth proportional to 53,862.40, 80,830.52 and 18,802.08 is: 28,216.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,862.40 : 80,830.52 = 18,802.08 : x
  2. Step 2: Convert to fraction form
    53,862.40/80,830.52 = 18,802.08/x
  3. Step 3: Cross multiply
    53,862.40x = 80,830.52 × 18,802.08
  4. Step 4: Simplify right side
    53,862.40x = 1,519,781,903.48
  5. Step 5: Solve for x
    x = 1,519,781,903.48/53,862.40
  6. Step 6: Final answer
    x = 28,216.01

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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.