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Finding the Fourth Proportional to 57,068.40, 85,602.60 and 46,570.80

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Solution

The fourth proportional to 57,068.40, 85,602.60 and 46,570.80 is: 69,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,068.40 : 85,602.60 = 46,570.80 : x
  2. Step 2: Convert to fraction form
    57,068.40/85,602.60 = 46,570.80/x
  3. Step 3: Cross multiply
    57,068.40x = 85,602.60 × 46,570.80
  4. Step 4: Simplify right side
    57,068.40x = 3,986,581,564.08
  5. Step 5: Solve for x
    x = 3,986,581,564.08/57,068.40
  6. Step 6: Final answer
    x = 69,856.20

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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.