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Finding the Fourth Proportional to 52,699.24, 72,723.40 and 28,825.40

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Solution

The fourth proportional to 52,699.24, 72,723.40 and 28,825.40 is: 39,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,699.24 : 72,723.40 = 28,825.40 : x
  2. Step 2: Convert to fraction form
    52,699.24/72,723.40 = 28,825.40/x
  3. Step 3: Cross multiply
    52,699.24x = 72,723.40 × 28,825.40
  4. Step 4: Simplify right side
    52,699.24x = 2,096,281,094.36
  5. Step 5: Solve for x
    x = 2,096,281,094.36/52,699.24
  6. Step 6: Final answer
    x = 39,778.20

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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.