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Finding the Fourth Proportional to 55,661.96, 83,492.88 and 13,541.78

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Solution

The fourth proportional to 55,661.96, 83,492.88 and 13,541.78 is: 20,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.96 : 83,492.88 = 13,541.78 : x
  2. Step 2: Convert to fraction form
    55,661.96/83,492.88 = 13,541.78/x
  3. Step 3: Cross multiply
    55,661.96x = 83,492.88 × 13,541.78
  4. Step 4: Simplify right side
    55,661.96x = 1,130,642,212.53
  5. Step 5: Solve for x
    x = 1,130,642,212.53/55,661.96
  6. Step 6: Final answer
    x = 20,312.66

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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.