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Finding the Fourth Proportional to 15,187.95, 22,898.79 and 14,915.79

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Solution

The fourth proportional to 15,187.95, 22,898.79 and 14,915.79 is: 22,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.95 : 22,898.79 = 14,915.79 : x
  2. Step 2: Convert to fraction form
    15,187.95/22,898.79 = 14,915.79/x
  3. Step 3: Cross multiply
    15,187.95x = 22,898.79 × 14,915.79
  4. Step 4: Simplify right side
    15,187.95x = 341,553,542.89
  5. Step 5: Solve for x
    x = 341,553,542.89/15,187.95
  6. Step 6: Final answer
    x = 22,488.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.