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Finding the Fourth Proportional to 19,294.40, 28,898.40 and 14,897.60

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Solution

The fourth proportional to 19,294.40, 28,898.40 and 14,897.60 is: 22,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.40 : 28,898.40 = 14,897.60 : x
  2. Step 2: Convert to fraction form
    19,294.40/28,898.40 = 14,897.60/x
  3. Step 3: Cross multiply
    19,294.40x = 28,898.40 × 14,897.60
  4. Step 4: Simplify right side
    19,294.40x = 430,516,803.84
  5. Step 5: Solve for x
    x = 430,516,803.84/19,294.40
  6. Step 6: Final answer
    x = 22,313.04

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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.