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Finding the Fourth Proportional to 64,368.27, 88,811.54 and 38,854.47

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Solution

The fourth proportional to 64,368.27, 88,811.54 and 38,854.47 is: 53,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,368.27 : 88,811.54 = 38,854.47 : x
  2. Step 2: Convert to fraction form
    64,368.27/88,811.54 = 38,854.47/x
  3. Step 3: Cross multiply
    64,368.27x = 88,811.54 × 38,854.47
  4. Step 4: Simplify right side
    64,368.27x = 3,450,725,122.31
  5. Step 5: Solve for x
    x = 3,450,725,122.31/64,368.27
  6. Step 6: Final answer
    x = 53,609.10

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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.