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Finding the Fourth Proportional to 19,223.66, 26,528.66 and 10,840.16

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Solution

The fourth proportional to 19,223.66, 26,528.66 and 10,840.16 is: 14,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,223.66 : 26,528.66 = 10,840.16 : x
  2. Step 2: Convert to fraction form
    19,223.66/26,528.66 = 10,840.16/x
  3. Step 3: Cross multiply
    19,223.66x = 26,528.66 × 10,840.16
  4. Step 4: Simplify right side
    19,223.66x = 287,574,732.14
  5. Step 5: Solve for x
    x = 287,574,732.14/19,223.66
  6. Step 6: Final answer
    x = 14,959.42

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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.