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Finding the Fourth Proportional to 70,658.58, 97,507.74 and 38,826.80

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Solution

The fourth proportional to 70,658.58, 97,507.74 and 38,826.80 is: 53,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,658.58 : 97,507.74 = 38,826.80 : x
  2. Step 2: Convert to fraction form
    70,658.58/97,507.74 = 38,826.80/x
  3. Step 3: Cross multiply
    70,658.58x = 97,507.74 × 38,826.80
  4. Step 4: Simplify right side
    70,658.58x = 3,785,913,031.89
  5. Step 5: Solve for x
    x = 3,785,913,031.89/70,658.58
  6. Step 6: Final answer
    x = 53,580.37

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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.