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Finding the Fourth Proportional to 64,486.70, 96,783.35 and 32,920.08

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Solution

The fourth proportional to 64,486.70, 96,783.35 and 32,920.08 is: 49,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.70 : 96,783.35 = 32,920.08 : x
  2. Step 2: Convert to fraction form
    64,486.70/96,783.35 = 32,920.08/x
  3. Step 3: Cross multiply
    64,486.70x = 96,783.35 × 32,920.08
  4. Step 4: Simplify right side
    64,486.70x = 3,186,115,460.07
  5. Step 5: Solve for x
    x = 3,186,115,460.07/64,486.70
  6. Step 6: Final answer
    x = 49,407.33

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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.