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Finding the Fourth Proportional to 25,988.91, 38,959.93 and 9,345.03

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Solution

The fourth proportional to 25,988.91, 38,959.93 and 9,345.03 is: 14,009.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988.91 : 38,959.93 = 9,345.03 : x
  2. Step 2: Convert to fraction form
    25,988.91/38,959.93 = 9,345.03/x
  3. Step 3: Cross multiply
    25,988.91x = 38,959.93 × 9,345.03
  4. Step 4: Simplify right side
    25,988.91x = 364,081,714.65
  5. Step 5: Solve for x
    x = 364,081,714.65/25,988.91
  6. Step 6: Final answer
    x = 14,009.12

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1.5x scale

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.