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Finding the Fourth Proportional to 44,572.68, 66,868.74 and 13,405.50

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Solution

The fourth proportional to 44,572.68, 66,868.74 and 13,405.50 is: 20,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,572.68 : 66,868.74 = 13,405.50 : x
  2. Step 2: Convert to fraction form
    44,572.68/66,868.74 = 13,405.50/x
  3. Step 3: Cross multiply
    44,572.68x = 66,868.74 × 13,405.50
  4. Step 4: Simplify right side
    44,572.68x = 896,408,894.07
  5. Step 5: Solve for x
    x = 896,408,894.07/44,572.68
  6. Step 6: Final answer
    x = 20,111.17

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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.