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Finding the Fourth Proportional to 70,833.72, 97,750.89 and 40,620.18

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Solution

The fourth proportional to 70,833.72, 97,750.89 and 40,620.18 is: 56,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,833.72 : 97,750.89 = 40,620.18 : x
  2. Step 2: Convert to fraction form
    70,833.72/97,750.89 = 40,620.18/x
  3. Step 3: Cross multiply
    70,833.72x = 97,750.89 × 40,620.18
  4. Step 4: Simplify right side
    70,833.72x = 3,970,658,746.96
  5. Step 5: Solve for x
    x = 3,970,658,746.96/70,833.72
  6. Step 6: Final answer
    x = 56,056.05

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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.