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Finding the Fourth Proportional to 60,672.80, 91,063.20 and 35,681.60

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Solution

The fourth proportional to 60,672.80, 91,063.20 and 35,681.60 is: 53,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,672.80 : 91,063.20 = 35,681.60 : x
  2. Step 2: Convert to fraction form
    60,672.80/91,063.20 = 35,681.60/x
  3. Step 3: Cross multiply
    60,672.80x = 91,063.20 × 35,681.60
  4. Step 4: Simplify right side
    60,672.80x = 3,249,280,677.12
  5. Step 5: Solve for x
    x = 3,249,280,677.12/60,672.80
  6. Step 6: Final answer
    x = 53,554.16

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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.