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Finding the Fourth Proportional to 25,345.08, 34,978.70 and 14,017.23

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Solution

The fourth proportional to 25,345.08, 34,978.70 and 14,017.23 is: 19,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,345.08 : 34,978.70 = 14,017.23 : x
  2. Step 2: Convert to fraction form
    25,345.08/34,978.70 = 14,017.23/x
  3. Step 3: Cross multiply
    25,345.08x = 34,978.70 × 14,017.23
  4. Step 4: Simplify right side
    25,345.08x = 490,304,483.00
  5. Step 5: Solve for x
    x = 490,304,483.00/25,345.08
  6. Step 6: Final answer
    x = 19,345.15

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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.