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Finding the Fourth Proportional to 64,698.58, 89,274.45 and 36,402.58

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Solution

The fourth proportional to 64,698.58, 89,274.45 and 36,402.58 is: 50,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,698.58 : 89,274.45 = 36,402.58 : x
  2. Step 2: Convert to fraction form
    64,698.58/89,274.45 = 36,402.58/x
  3. Step 3: Cross multiply
    64,698.58x = 89,274.45 × 36,402.58
  4. Step 4: Simplify right side
    64,698.58x = 3,249,820,308.08
  5. Step 5: Solve for x
    x = 3,249,820,308.08/64,698.58
  6. Step 6: Final answer
    x = 50,230.16

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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.