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Finding the Fourth Proportional to 25,783.08, 35,578.24 and 14,605.08

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Solution

The fourth proportional to 25,783.08, 35,578.24 and 14,605.08 is: 20,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.08 : 35,578.24 = 14,605.08 : x
  2. Step 2: Convert to fraction form
    25,783.08/35,578.24 = 14,605.08/x
  3. Step 3: Cross multiply
    25,783.08x = 35,578.24 × 14,605.08
  4. Step 4: Simplify right side
    25,783.08x = 519,623,041.46
  5. Step 5: Solve for x
    x = 519,623,041.46/25,783.08
  6. Step 6: Final answer
    x = 20,153.65

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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.