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Finding the Fourth Proportional to 70,657.48, 97,508.46 and 40,442.68

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Solution

The fourth proportional to 70,657.48, 97,508.46 and 40,442.68 is: 55,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,657.48 : 97,508.46 = 40,442.68 : x
  2. Step 2: Convert to fraction form
    70,657.48/97,508.46 = 40,442.68/x
  3. Step 3: Cross multiply
    70,657.48x = 97,508.46 × 40,442.68
  4. Step 4: Simplify right side
    70,657.48x = 3,943,503,445.07
  5. Step 5: Solve for x
    x = 3,943,503,445.07/70,657.48
  6. Step 6: Final answer
    x = 55,811.55

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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.