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Finding the Fourth Proportional to 52,873.84, 72,966.90 and 28,999.12

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Solution

The fourth proportional to 52,873.84, 72,966.90 and 28,999.12 is: 40,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,873.84 : 72,966.90 = 28,999.12 : x
  2. Step 2: Convert to fraction form
    52,873.84/72,966.90 = 28,999.12/x
  3. Step 3: Cross multiply
    52,873.84x = 72,966.90 × 28,999.12
  4. Step 4: Simplify right side
    52,873.84x = 2,115,975,889.13
  5. Step 5: Solve for x
    x = 2,115,975,889.13/52,873.84
  6. Step 6: Final answer
    x = 40,019.33

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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.