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Finding the Fourth Proportional to 64,984.26, 89,678.56 and 35,176.26

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Solution

The fourth proportional to 64,984.26, 89,678.56 and 35,176.26 is: 48,543.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.26 : 89,678.56 = 35,176.26 : x
  2. Step 2: Convert to fraction form
    64,984.26/89,678.56 = 35,176.26/x
  3. Step 3: Cross multiply
    64,984.26x = 89,678.56 × 35,176.26
  4. Step 4: Simplify right side
    64,984.26x = 3,154,556,342.99
  5. Step 5: Solve for x
    x = 3,154,556,342.99/64,984.26
  6. Step 6: Final answer
    x = 48,543.39

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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.