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Finding the Fourth Proportional to 70,607.62, 97,441.14 and 42,307.84

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Solution

The fourth proportional to 70,607.62, 97,441.14 and 42,307.84 is: 58,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.62 : 97,441.14 = 42,307.84 : x
  2. Step 2: Convert to fraction form
    70,607.62/97,441.14 = 42,307.84/x
  3. Step 3: Cross multiply
    70,607.62x = 97,441.14 × 42,307.84
  4. Step 4: Simplify right side
    70,607.62x = 4,122,524,160.54
  5. Step 5: Solve for x
    x = 4,122,524,160.54/70,607.62
  6. Step 6: Final answer
    x = 58,386.39

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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.