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Finding the Fourth Proportional to 64,139.51, 95,739.53 and 56,564.44

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Solution

The fourth proportional to 64,139.51, 95,739.53 and 56,564.44 is: 84,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.51 : 95,739.53 = 56,564.44 : x
  2. Step 2: Convert to fraction form
    64,139.51/95,739.53 = 56,564.44/x
  3. Step 3: Cross multiply
    64,139.51x = 95,739.53 × 56,564.44
  4. Step 4: Simplify right side
    64,139.51x = 5,415,452,900.31
  5. Step 5: Solve for x
    x = 5,415,452,900.31/64,139.51
  6. Step 6: Final answer
    x = 84,432.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.