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Finding the Fourth Proportional to 62,085.80, 93,128.70 and 43,326.20

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Solution

The fourth proportional to 62,085.80, 93,128.70 and 43,326.20 is: 64,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,085.80 : 93,128.70 = 43,326.20 : x
  2. Step 2: Convert to fraction form
    62,085.80/93,128.70 = 43,326.20/x
  3. Step 3: Cross multiply
    62,085.80x = 93,128.70 × 43,326.20
  4. Step 4: Simplify right side
    62,085.80x = 4,034,912,681.94
  5. Step 5: Solve for x
    x = 4,034,912,681.94/62,085.80
  6. Step 6: Final answer
    x = 64,989.30

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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.