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Finding the Fourth Proportional to 70,292.87, 97,005.56 and 38,462.45

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Solution

The fourth proportional to 70,292.87, 97,005.56 and 38,462.45 is: 53,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,292.87 : 97,005.56 = 38,462.45 : x
  2. Step 2: Convert to fraction form
    70,292.87/97,005.56 = 38,462.45/x
  3. Step 3: Cross multiply
    70,292.87x = 97,005.56 × 38,462.45
  4. Step 4: Simplify right side
    70,292.87x = 3,731,071,501.22
  5. Step 5: Solve for x
    x = 3,731,071,501.22/70,292.87
  6. Step 6: Final answer
    x = 53,078.95

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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.