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Finding the Fourth Proportional to 64,825, 89,458.58 and 35,017

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Solution

The fourth proportional to 64,825, 89,458.58 and 35,017 is: 48,323.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,825 : 89,458.58 = 35,017 : x
  2. Step 2: Convert to fraction form
    64,825/89,458.58 = 35,017/x
  3. Step 3: Cross multiply
    64,825x = 89,458.58 × 35,017
  4. Step 4: Simplify right side
    64,825x = 3,132,571,095.86
  5. Step 5: Solve for x
    x = 3,132,571,095.86/64,825
  6. Step 6: Final answer
    x = 48,323.50

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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.