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Finding the Fourth Proportional to 64,310.40, 88,753.05 and 38,823.03

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Solution

The fourth proportional to 64,310.40, 88,753.05 and 38,823.03 is: 53,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,310.40 : 88,753.05 = 38,823.03 : x
  2. Step 2: Convert to fraction form
    64,310.40/88,753.05 = 38,823.03/x
  3. Step 3: Cross multiply
    64,310.40x = 88,753.05 × 38,823.03
  4. Step 4: Simplify right side
    64,310.40x = 3,445,662,322.74
  5. Step 5: Solve for x
    x = 3,445,662,322.74/64,310.40
  6. Step 6: Final answer
    x = 53,578.62

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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.