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Finding the Fourth Proportional to 64,291.79, 88,708.33 and 38,802.31

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Solution

The fourth proportional to 64,291.79, 88,708.33 and 38,802.31 is: 53,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,291.79 : 88,708.33 = 38,802.31 : x
  2. Step 2: Convert to fraction form
    64,291.79/88,708.33 = 38,802.31/x
  3. Step 3: Cross multiply
    64,291.79x = 88,708.33 × 38,802.31
  4. Step 4: Simplify right side
    64,291.79x = 3,442,088,120.24
  5. Step 5: Solve for x
    x = 3,442,088,120.24/64,291.79
  6. Step 6: Final answer
    x = 53,538.53

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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.