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Finding the Fourth Proportional to 70,657.29, 97,505.10 and 38,826.18

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Solution

The fourth proportional to 70,657.29, 97,505.10 and 38,826.18 is: 53,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,657.29 : 97,505.10 = 38,826.18 : x
  2. Step 2: Convert to fraction form
    70,657.29/97,505.10 = 38,826.18/x
  3. Step 3: Cross multiply
    70,657.29x = 97,505.10 × 38,826.18
  4. Step 4: Simplify right side
    70,657.29x = 3,785,750,563.52
  5. Step 5: Solve for x
    x = 3,785,750,563.52/70,657.29
  6. Step 6: Final answer
    x = 53,579.05

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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.