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Finding the Fourth Proportional to 70,090.28, 96,681.48 and 49,953.68

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Solution

The fourth proportional to 70,090.28, 96,681.48 and 49,953.68 is: 68,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,090.28 : 96,681.48 = 49,953.68 : x
  2. Step 2: Convert to fraction form
    70,090.28/96,681.48 = 49,953.68/x
  3. Step 3: Cross multiply
    70,090.28x = 96,681.48 × 49,953.68
  4. Step 4: Simplify right side
    70,090.28x = 4,829,595,230.44
  5. Step 5: Solve for x
    x = 4,829,595,230.44/70,090.28
  6. Step 6: Final answer
    x = 68,905.35

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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.