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Finding the Fourth Proportional to 22,838.52, 31,526.88 and 13,888.90

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Solution

The fourth proportional to 22,838.52, 31,526.88 and 13,888.90 is: 19,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,838.52 : 31,526.88 = 13,888.90 : x
  2. Step 2: Convert to fraction form
    22,838.52/31,526.88 = 13,888.90/x
  3. Step 3: Cross multiply
    22,838.52x = 31,526.88 × 13,888.90
  4. Step 4: Simplify right side
    22,838.52x = 437,873,683.63
  5. Step 5: Solve for x
    x = 437,873,683.63/22,838.52
  6. Step 6: Final answer
    x = 19,172.59

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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.