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Finding the Fourth Proportional to 70,957.25, 97,920.29 and 40,752.05

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Solution

The fourth proportional to 70,957.25, 97,920.29 and 40,752.05 is: 56,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.25 : 97,920.29 = 40,752.05 : x
  2. Step 2: Convert to fraction form
    70,957.25/97,920.29 = 40,752.05/x
  3. Step 3: Cross multiply
    70,957.25x = 97,920.29 × 40,752.05
  4. Step 4: Simplify right side
    70,957.25x = 3,990,452,166.37
  5. Step 5: Solve for x
    x = 3,990,452,166.37/70,957.25
  6. Step 6: Final answer
    x = 56,237.41

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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.