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Finding the Fourth Proportional to 8,970.53, 13,440.13 and 5,845.55

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Solution

The fourth proportional to 8,970.53, 13,440.13 and 5,845.55 is: 8,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.53 : 13,440.13 = 5,845.55 : x
  2. Step 2: Convert to fraction form
    8,970.53/13,440.13 = 5,845.55/x
  3. Step 3: Cross multiply
    8,970.53x = 13,440.13 × 5,845.55
  4. Step 4: Simplify right side
    8,970.53x = 78,564,870.11
  5. Step 5: Solve for x
    x = 78,564,870.11/8,970.53
  6. Step 6: Final answer
    x = 8,758.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.