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Finding the Fourth Proportional to 52,866.99, 72,956.45 and 28,994.16

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Solution

The fourth proportional to 52,866.99, 72,956.45 and 28,994.16 is: 40,011.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,866.99 : 72,956.45 = 28,994.16 : x
  2. Step 2: Convert to fraction form
    52,866.99/72,956.45 = 28,994.16/x
  3. Step 3: Cross multiply
    52,866.99x = 72,956.45 × 28,994.16
  4. Step 4: Simplify right side
    52,866.99x = 2,115,310,839.36
  5. Step 5: Solve for x
    x = 2,115,310,839.36/52,866.99
  6. Step 6: Final answer
    x = 40,011.94

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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.