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Finding the Fourth Proportional to 6,918.50, 9,547.53 and 4,434.50

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Solution

The fourth proportional to 6,918.50, 9,547.53 and 4,434.50 is: 6,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.50 : 9,547.53 = 4,434.50 : x
  2. Step 2: Convert to fraction form
    6,918.50/9,547.53 = 4,434.50/x
  3. Step 3: Cross multiply
    6,918.50x = 9,547.53 × 4,434.50
  4. Step 4: Simplify right side
    6,918.50x = 42,338,521.79
  5. Step 5: Solve for x
    x = 42,338,521.79/6,918.50
  6. Step 6: Final answer
    x = 6,119.61

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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.