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Finding the Fourth Proportional to 70,320.70, 97,038.81 and 38,483.44

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Solution

The fourth proportional to 70,320.70, 97,038.81 and 38,483.44 is: 53,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,320.70 : 97,038.81 = 38,483.44 : x
  2. Step 2: Convert to fraction form
    70,320.70/97,038.81 = 38,483.44/x
  3. Step 3: Cross multiply
    70,320.70x = 97,038.81 × 38,483.44
  4. Step 4: Simplify right side
    70,320.70x = 3,734,387,222.31
  5. Step 5: Solve for x
    x = 3,734,387,222.31/70,320.70
  6. Step 6: Final answer
    x = 53,105.09

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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.