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Finding the Fourth Proportional to 34,985.68, 52,490.04 and 14,203.60

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Solution

The fourth proportional to 34,985.68, 52,490.04 and 14,203.60 is: 21,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,985.68 : 52,490.04 = 14,203.60 : x
  2. Step 2: Convert to fraction form
    34,985.68/52,490.04 = 14,203.60/x
  3. Step 3: Cross multiply
    34,985.68x = 52,490.04 × 14,203.60
  4. Step 4: Simplify right side
    34,985.68x = 745,547,532.14
  5. Step 5: Solve for x
    x = 745,547,532.14/34,985.68
  6. Step 6: Final answer
    x = 21,310.08

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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.