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Finding the Fourth Proportional to 64,984.76, 89,679.24 and 35,176.76

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Solution

The fourth proportional to 64,984.76, 89,679.24 and 35,176.76 is: 48,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.76 : 89,679.24 = 35,176.76 : x
  2. Step 2: Convert to fraction form
    64,984.76/89,679.24 = 35,176.76/x
  3. Step 3: Cross multiply
    64,984.76x = 89,679.24 × 35,176.76
  4. Step 4: Simplify right side
    64,984.76x = 3,154,625,102.46
  5. Step 5: Solve for x
    x = 3,154,625,102.46/64,984.76
  6. Step 6: Final answer
    x = 48,544.08

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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.