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Finding the Fourth Proportional to 69,021.90, 103,472.10 and 46,763.10

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Solution

The fourth proportional to 69,021.90, 103,472.10 and 46,763.10 is: 70,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,021.90 : 103,472.10 = 46,763.10 : x
  2. Step 2: Convert to fraction form
    69,021.90/103,472.10 = 46,763.10/x
  3. Step 3: Cross multiply
    69,021.90x = 103,472.10 × 46,763.10
  4. Step 4: Simplify right side
    69,021.90x = 4,838,676,159.51
  5. Step 5: Solve for x
    x = 4,838,676,159.51/69,021.90
  6. Step 6: Final answer
    x = 70,103.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.