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Finding the Fourth Proportional to 7,374.95, 11,005.79 and 6,586.72

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Solution

The fourth proportional to 7,374.95, 11,005.79 and 6,586.72 is: 9,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.95 : 11,005.79 = 6,586.72 : x
  2. Step 2: Convert to fraction form
    7,374.95/11,005.79 = 6,586.72/x
  3. Step 3: Cross multiply
    7,374.95x = 11,005.79 × 6,586.72
  4. Step 4: Simplify right side
    7,374.95x = 72,492,033.71
  5. Step 5: Solve for x
    x = 72,492,033.71/7,374.95
  6. Step 6: Final answer
    x = 9,829.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.