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Finding the Fourth Proportional to 7,045.79, 9,724.79 and 4,392.69

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Solution

The fourth proportional to 7,045.79, 9,724.79 and 4,392.69 is: 6,062.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.79 : 9,724.79 = 4,392.69 : x
  2. Step 2: Convert to fraction form
    7,045.79/9,724.79 = 4,392.69/x
  3. Step 3: Cross multiply
    7,045.79x = 9,724.79 × 4,392.69
  4. Step 4: Simplify right side
    7,045.79x = 42,717,962.30
  5. Step 5: Solve for x
    x = 42,717,962.30/7,045.79
  6. Step 6: Final answer
    x = 6,062.91

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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.