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Finding the Fourth Proportional to 35,869.80, 53,804.70 and 10,909.65

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Solution

The fourth proportional to 35,869.80, 53,804.70 and 10,909.65 is: 16,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,869.80 : 53,804.70 = 10,909.65 : x
  2. Step 2: Convert to fraction form
    35,869.80/53,804.70 = 10,909.65/x
  3. Step 3: Cross multiply
    35,869.80x = 53,804.70 × 10,909.65
  4. Step 4: Simplify right side
    35,869.80x = 586,990,445.36
  5. Step 5: Solve for x
    x = 586,990,445.36/35,869.80
  6. Step 6: Final answer
    x = 16,364.48

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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.