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Finding the Fourth Proportional to 57,312.72, 85,968.27 and 17,870.22

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Solution

The fourth proportional to 57,312.72, 85,968.27 and 17,870.22 is: 26,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312.72 : 85,968.27 = 17,870.22 : x
  2. Step 2: Convert to fraction form
    57,312.72/85,968.27 = 17,870.22/x
  3. Step 3: Cross multiply
    57,312.72x = 85,968.27 × 17,870.22
  4. Step 4: Simplify right side
    57,312.72x = 1,536,271,897.92
  5. Step 5: Solve for x
    x = 1,536,271,897.92/57,312.72
  6. Step 6: Final answer
    x = 26,805.08

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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.