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Finding the Fourth Proportional to 52,797.21, 72,860.16 and 28,924.74

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Solution

The fourth proportional to 52,797.21, 72,860.16 and 28,924.74 is: 39,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,797.21 : 72,860.16 = 28,924.74 : x
  2. Step 2: Convert to fraction form
    52,797.21/72,860.16 = 28,924.74/x
  3. Step 3: Cross multiply
    52,797.21x = 72,860.16 × 28,924.74
  4. Step 4: Simplify right side
    52,797.21x = 2,107,461,184.36
  5. Step 5: Solve for x
    x = 2,107,461,184.36/52,797.21
  6. Step 6: Final answer
    x = 39,916.15

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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.