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Finding the Fourth Proportional to 35,355.40, 53,031.90 and 9,060.40

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Solution

The fourth proportional to 35,355.40, 53,031.90 and 9,060.40 is: 13,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,355.40 : 53,031.90 = 9,060.40 : x
  2. Step 2: Convert to fraction form
    35,355.40/53,031.90 = 9,060.40/x
  3. Step 3: Cross multiply
    35,355.40x = 53,031.90 × 9,060.40
  4. Step 4: Simplify right side
    35,355.40x = 480,490,226.76
  5. Step 5: Solve for x
    x = 480,490,226.76/35,355.40
  6. Step 6: Final answer
    x = 13,590.29

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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.