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Finding the Fourth Proportional to 8,369.79, 11,547.42 and 5,854.74

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Solution

The fourth proportional to 8,369.79, 11,547.42 and 5,854.74 is: 8,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.79 : 11,547.42 = 5,854.74 : x
  2. Step 2: Convert to fraction form
    8,369.79/11,547.42 = 5,854.74/x
  3. Step 3: Cross multiply
    8,369.79x = 11,547.42 × 5,854.74
  4. Step 4: Simplify right side
    8,369.79x = 67,607,141.77
  5. Step 5: Solve for x
    x = 67,607,141.77/8,369.79
  6. Step 6: Final answer
    x = 8,077.52

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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.