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Finding the Fourth Proportional to 23,278.88, 32,123.88 and 12,668.57

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Solution

The fourth proportional to 23,278.88, 32,123.88 and 12,668.57 is: 17,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,278.88 : 32,123.88 = 12,668.57 : x
  2. Step 2: Convert to fraction form
    23,278.88/32,123.88 = 12,668.57/x
  3. Step 3: Cross multiply
    23,278.88x = 32,123.88 × 12,668.57
  4. Step 4: Simplify right side
    23,278.88x = 406,963,622.45
  5. Step 5: Solve for x
    x = 406,963,622.45/23,278.88
  6. Step 6: Final answer
    x = 17,482.10

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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.