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Finding the Fourth Proportional to 17,802.40, 26,703.60 and 17,672.80

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Solution

The fourth proportional to 17,802.40, 26,703.60 and 17,672.80 is: 26,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,802.40 : 26,703.60 = 17,672.80 : x
  2. Step 2: Convert to fraction form
    17,802.40/26,703.60 = 17,672.80/x
  3. Step 3: Cross multiply
    17,802.40x = 26,703.60 × 17,672.80
  4. Step 4: Simplify right side
    17,802.40x = 471,927,382.08
  5. Step 5: Solve for x
    x = 471,927,382.08/17,802.40
  6. Step 6: Final answer
    x = 26,509.20

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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.