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Finding the Fourth Proportional to 70,434.94, 97,200.34 and 38,603.16

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Solution

The fourth proportional to 70,434.94, 97,200.34 and 38,603.16 is: 53,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,434.94 : 97,200.34 = 38,603.16 : x
  2. Step 2: Convert to fraction form
    70,434.94/97,200.34 = 38,603.16/x
  3. Step 3: Cross multiply
    70,434.94x = 97,200.34 × 38,603.16
  4. Step 4: Simplify right side
    70,434.94x = 3,752,240,277.07
  5. Step 5: Solve for x
    x = 3,752,240,277.07/70,434.94
  6. Step 6: Final answer
    x = 53,272.43

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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.