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Finding the Fourth Proportional to 34,654.51, 47,819.21 and 19,547.42

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Solution

The fourth proportional to 34,654.51, 47,819.21 and 19,547.42 is: 26,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.51 : 47,819.21 = 19,547.42 : x
  2. Step 2: Convert to fraction form
    34,654.51/47,819.21 = 19,547.42/x
  3. Step 3: Cross multiply
    34,654.51x = 47,819.21 × 19,547.42
  4. Step 4: Simplify right side
    34,654.51x = 934,742,181.94
  5. Step 5: Solve for x
    x = 934,742,181.94/34,654.51
  6. Step 6: Final answer
    x = 26,973.18

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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.