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Finding the Fourth Proportional to 70,308.52, 97,027.14 and 38,477.80

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Solution

The fourth proportional to 70,308.52, 97,027.14 and 38,477.80 is: 53,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,308.52 : 97,027.14 = 38,477.80 : x
  2. Step 2: Convert to fraction form
    70,308.52/97,027.14 = 38,477.80/x
  3. Step 3: Cross multiply
    70,308.52x = 97,027.14 × 38,477.80
  4. Step 4: Simplify right side
    70,308.52x = 3,733,390,887.49
  5. Step 5: Solve for x
    x = 3,733,390,887.49/70,308.52
  6. Step 6: Final answer
    x = 53,100.12

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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.