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Finding the Fourth Proportional to 52,798.60, 72,862.15 and 28,924.75

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Solution

The fourth proportional to 52,798.60, 72,862.15 and 28,924.75 is: 39,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,798.60 : 72,862.15 = 28,924.75 : x
  2. Step 2: Convert to fraction form
    52,798.60/72,862.15 = 28,924.75/x
  3. Step 3: Cross multiply
    52,798.60x = 72,862.15 × 28,924.75
  4. Step 4: Simplify right side
    52,798.60x = 2,107,519,473.21
  5. Step 5: Solve for x
    x = 2,107,519,473.21/52,798.60
  6. Step 6: Final answer
    x = 39,916.20

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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.