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Finding the Fourth Proportional to 52,887, 72,985.42 and 29,914.94

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Solution

The fourth proportional to 52,887, 72,985.42 and 29,914.94 is: 41,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,887 : 72,985.42 = 29,914.94 : x
  2. Step 2: Convert to fraction form
    52,887/72,985.42 = 29,914.94/x
  3. Step 3: Cross multiply
    52,887x = 72,985.42 × 29,914.94
  4. Step 4: Simplify right side
    52,887x = 2,183,354,460.17
  5. Step 5: Solve for x
    x = 2,183,354,460.17/52,887
  6. Step 6: Final answer
    x = 41,283.39

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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.