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Finding the Fourth Proportional to 34,386.72, 47,452.32 and 19,482.72

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Solution

The fourth proportional to 34,386.72, 47,452.32 and 19,482.72 is: 26,885.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,386.72 : 47,452.32 = 19,482.72 : x
  2. Step 2: Convert to fraction form
    34,386.72/47,452.32 = 19,482.72/x
  3. Step 3: Cross multiply
    34,386.72x = 47,452.32 × 19,482.72
  4. Step 4: Simplify right side
    34,386.72x = 924,500,263.91
  5. Step 5: Solve for x
    x = 924,500,263.91/34,386.72
  6. Step 6: Final answer
    x = 26,885.39

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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.