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Finding the Fourth Proportional to 64,008.51, 88,347.56 and 38,879.07

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Solution

The fourth proportional to 64,008.51, 88,347.56 and 38,879.07 is: 53,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,008.51 : 88,347.56 = 38,879.07 : x
  2. Step 2: Convert to fraction form
    64,008.51/88,347.56 = 38,879.07/x
  3. Step 3: Cross multiply
    64,008.51x = 88,347.56 × 38,879.07
  4. Step 4: Simplify right side
    64,008.51x = 3,434,870,775.17
  5. Step 5: Solve for x
    x = 3,434,870,775.17/64,008.51
  6. Step 6: Final answer
    x = 53,662.72

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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.