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Finding the Fourth Proportional to 70,032.90, 96,641.49 and 39,814.02

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Solution

The fourth proportional to 70,032.90, 96,641.49 and 39,814.02 is: 54,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,032.90 : 96,641.49 = 39,814.02 : x
  2. Step 2: Convert to fraction form
    70,032.90/96,641.49 = 39,814.02/x
  3. Step 3: Cross multiply
    70,032.90x = 96,641.49 × 39,814.02
  4. Step 4: Simplify right side
    70,032.90x = 3,847,686,215.69
  5. Step 5: Solve for x
    x = 3,847,686,215.69/70,032.90
  6. Step 6: Final answer
    x = 54,941.12

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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.