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Finding the Fourth Proportional to 64,315.60, 96,621.64 and 61,658.48

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Solution

The fourth proportional to 64,315.60, 96,621.64 and 61,658.48 is: 92,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,315.60 : 96,621.64 = 61,658.48 : x
  2. Step 2: Convert to fraction form
    64,315.60/96,621.64 = 61,658.48/x
  3. Step 3: Cross multiply
    64,315.60x = 96,621.64 × 61,658.48
  4. Step 4: Simplify right side
    64,315.60x = 5,957,543,457.51
  5. Step 5: Solve for x
    x = 5,957,543,457.51/64,315.60
  6. Step 6: Final answer
    x = 92,629.84

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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.