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Finding the Fourth Proportional to 25,738.80, 38,566.80 and 14,612.40

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Solution

The fourth proportional to 25,738.80, 38,566.80 and 14,612.40 is: 21,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,738.80 : 38,566.80 = 14,612.40 : x
  2. Step 2: Convert to fraction form
    25,738.80/38,566.80 = 14,612.40/x
  3. Step 3: Cross multiply
    25,738.80x = 38,566.80 × 14,612.40
  4. Step 4: Simplify right side
    25,738.80x = 563,553,508.32
  5. Step 5: Solve for x
    x = 563,553,508.32/25,738.80
  6. Step 6: Final answer
    x = 21,895.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.