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Finding the Fourth Proportional to 70,657.92, 97,410.50 and 56,366.25

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Solution

The fourth proportional to 70,657.92, 97,410.50 and 56,366.25 is: 77,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,657.92 : 97,410.50 = 56,366.25 : x
  2. Step 2: Convert to fraction form
    70,657.92/97,410.50 = 56,366.25/x
  3. Step 3: Cross multiply
    70,657.92x = 97,410.50 × 56,366.25
  4. Step 4: Simplify right side
    70,657.92x = 5,490,664,981.78
  5. Step 5: Solve for x
    x = 5,490,664,981.78/70,657.92
  6. Step 6: Final answer
    x = 77,707.71

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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.