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Finding the Fourth Proportional to 30,356.48, 41,894.08 and 16,928.64

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Solution

The fourth proportional to 30,356.48, 41,894.08 and 16,928.64 is: 23,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.48 : 41,894.08 = 16,928.64 : x
  2. Step 2: Convert to fraction form
    30,356.48/41,894.08 = 16,928.64/x
  3. Step 3: Cross multiply
    30,356.48x = 41,894.08 × 16,928.64
  4. Step 4: Simplify right side
    30,356.48x = 709,209,798.45
  5. Step 5: Solve for x
    x = 709,209,798.45/30,356.48
  6. Step 6: Final answer
    x = 23,362.72

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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.