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Finding the Fourth Proportional to 9,007.65, 12,430.04 and 5,029.01

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Solution

The fourth proportional to 9,007.65, 12,430.04 and 5,029.01 is: 6,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.65 : 12,430.04 = 5,029.01 : x
  2. Step 2: Convert to fraction form
    9,007.65/12,430.04 = 5,029.01/x
  3. Step 3: Cross multiply
    9,007.65x = 12,430.04 × 5,029.01
  4. Step 4: Simplify right side
    9,007.65x = 62,510,801.39
  5. Step 5: Solve for x
    x = 62,510,801.39/9,007.65
  6. Step 6: Final answer
    x = 6,939.75

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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.